398812960

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{13}}^2\times {\mathrm{43}}^1$

素因数の和:105

約数の個数: 288

約数和(自身を含む): 1217462400

約数和(自身を除く): 818649440

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 43, 49, 52, 56, 65, 70, 80, 86, 91, 98, 104, 112, 130, 140, 160, 169, 172, 182, 196, 208, 215, 224, 245, 260, 280, 301, 338, 343, 344, 364, 392, 416, 430, 455, 490, 520, 559, 560, 602, 637, 676, 686, 688, 728, 784, 845, 860, 910, 980, 1040, 1118, 1120, 1183, 1204, 1274, 1352, 1372, 1376, 1456, 1505, 1568, 1690, 1715, 1720, 1820, 1960, 2080, 2107, 2236, 2366, 2408, 2548, 2704, 2744, 2795, 2912, 3010, 3185, 3380, 3430, 3440, 3640, 3913, 3920, 4214, 4459, 4472, 4732, 4816, 5096, 5408, 5488, 5590, 5915, 6020, 6370, 6760, 6860, 6880, 7267, 7280, 7826, 7840, 8281, 8428, 8918, 8944, 9464, 9632, 10192, 10535, 10976, 11180, 11830, 12040, 12740, 13520, 13720, 14534, 14560, 14749, 15652, 16562, 16856, 17836, 17888, 18928, 19565, 20384, 21070, 22295, 22360, 23660, 24080, 25480, 27040, 27391, 27440, 29068, 29498, 31304, 33124, 33712, 35672, 36335, 37856, 39130, 41405, 42140, 44590, 44720, 47320, 48160, 50869, 50960, 54782, 54880, 57967, 58136, 58996, 62608, 66248, 67424, 71344, 72670, 73745, 78260, 82810, 84280, 89180, 89440, 94640, 101738, 101920, 109564, 115934, 116272, 117992, 125216, 132496, 136955, 142688, 145340, 147490, 156520, 165620, 168560, 178360, 189280, 191737, 203476, 219128, 231868, 232544, 235984, 254345, 264992, 273910, 289835, 290680, 294980, 313040, 331240, 337120, 356083, 356720, 383474, 406952, 438256, 463736, 471968, 508690, 547820, 579670, 581360, 589960, 626080, 662480, 712166, 713440, 766948, 813904, 876512, 927472, 958685, 1017380, 1095640, 1159340, 1162720, 1179920, 1324960, 1424332, 1533896, 1627808, 1780415, 1854944, 1917370, 2034760, 2191280, 2318680, 2359840, 2492581, 2848664, 3067792, 3560830, 3834740, 4069520, 4382560, 4637360, 4985162, 5697328, 6135584, 7121660, 7669480, 8139040, 9274720, 9970324, 11394656, 12462905, 14243320, 15338960, 19940648, 24925810, 28486640, 30677920, 39881296, 49851620, 56973280, 79762592, 99703240, 199406480, 398812960]

約数ペア:

[(1, 398812960), (2, 199406480), (4, 99703240), (5, 79762592), (7, 56973280), (8, 49851620), (10, 39881296), (13, 30677920), (14, 28486640), (16, 24925810), (20, 19940648), (26, 15338960), (28, 14243320), (32, 12462905), (35, 11394656), (40, 9970324), (43, 9274720), (49, 8139040), (52, 7669480), (56, 7121660), (65, 6135584), (70, 5697328), (80, 4985162), (86, 4637360), (91, 4382560), (98, 4069520), (104, 3834740), (112, 3560830), (130, 3067792), (140, 2848664), (160, 2492581), (169, 2359840), (172, 2318680), (182, 2191280), (196, 2034760), (208, 1917370), (215, 1854944), (224, 1780415), (245, 1627808), (260, 1533896), (280, 1424332), (301, 1324960), (338, 1179920), (343, 1162720), (344, 1159340), (364, 1095640), (392, 1017380), (416, 958685), (430, 927472), (455, 876512), (490, 813904), (520, 766948), (559, 713440), (560, 712166), (602, 662480), (637, 626080), (676, 589960), (686, 581360), (688, 579670), (728, 547820), (784, 508690), (845, 471968), (860, 463736), (910, 438256), (980, 406952), (1040, 383474), (1118, 356720), (1120, 356083), (1183, 337120), (1204, 331240), (1274, 313040), (1352, 294980), (1372, 290680), (1376, 289835), (1456, 273910), (1505, 264992), (1568, 254345), (1690, 235984), (1715, 232544), (1720, 231868), (1820, 219128), (1960, 203476), (2080, 191737), (2107, 189280), (2236, 178360), (2366, 168560), (2408, 165620), (2548, 156520), (2704, 147490), (2744, 145340), (2795, 142688), (2912, 136955), (3010, 132496), (3185, 125216), (3380, 117992), (3430, 116272), (3440, 115934), (3640, 109564), (3913, 101920), (3920, 101738), (4214, 94640), (4459, 89440), (4472, 89180), (4732, 84280), (4816, 82810), (5096, 78260), (5408, 73745), (5488, 72670), (5590, 71344), (5915, 67424), (6020, 66248), (6370, 62608), (6760, 58996), (6860, 58136), (6880, 57967), (7267, 54880), (7280, 54782), (7826, 50960), (7840, 50869), (8281, 48160), (8428, 47320), (8918, 44720), (8944, 44590), (9464, 42140), (9632, 41405), (10192, 39130), (10535, 37856), (10976, 36335), (11180, 35672), (11830, 33712), (12040, 33124), (12740, 31304), (13520, 29498), (13720, 29068), (14534, 27440), (14560, 27391), (14749, 27040), (15652, 25480), (16562, 24080), (16856, 23660), (17836, 22360), (17888, 22295), (18928, 21070), (19565, 20384)]