20975179904

素因数分解:

$2^7\times 7^3\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:388

約数の個数: 256

約数和(自身を含む): 52215840000

約数和(自身を除く): 31240660096

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 49, 56, 64, 68, 98, 112, 119, 128, 136, 157, 179, 196, 224, 238, 272, 314, 343, 358, 392, 448, 476, 544, 628, 686, 716, 784, 833, 896, 952, 1088, 1099, 1253, 1256, 1372, 1432, 1568, 1666, 1904, 2176, 2198, 2506, 2512, 2669, 2744, 2864, 3043, 3136, 3332, 3808, 4396, 5012, 5024, 5338, 5488, 5728, 5831, 6086, 6272, 6664, 7616, 7693, 8771, 8792, 10024, 10048, 10676, 10976, 11456, 11662, 12172, 13328, 15232, 15386, 17542, 17584, 18683, 20048, 20096, 21301, 21352, 21952, 22912, 23324, 24344, 26656, 28103, 30772, 35084, 35168, 37366, 40096, 42602, 42704, 43904, 46648, 48688, 53312, 53851, 56206, 61397, 61544, 70168, 70336, 74732, 80192, 85204, 85408, 93296, 97376, 106624, 107702, 112412, 122794, 123088, 130781, 140336, 140672, 149107, 149464, 160384, 170408, 170816, 186592, 194752, 196721, 215404, 224824, 245588, 246176, 261562, 280672, 298214, 298928, 340816, 341632, 373184, 389504, 393442, 430808, 449648, 477751, 491176, 492352, 523124, 561344, 596428, 597856, 681632, 746368, 786884, 861616, 899296, 915467, 955502, 982352, 984704, 1043749, 1046248, 1122688, 1192856, 1195712, 1363264, 1377047, 1573768, 1723232, 1798592, 1830934, 1911004, 1964704, 2087498, 2092496, 2385712, 2391424, 2726528, 2754094, 3147536, 3344257, 3446464, 3597184, 3661868, 3822008, 3929408, 4174996, 4184992, 4771424, 5508188, 6295072, 6688514, 6892928, 7323736, 7644016, 7858816, 8349992, 8369984, 9542848, 9639329, 11016376, 12590144, 13377028, 14647472, 15288032, 16699984, 16739968, 19085696, 19278658, 22032752, 23409799, 25180288, 26754056, 29294944, 30576064, 33399968, 38557316, 44065504, 46819598, 53508112, 58589888, 61152128, 66799936, 77114632, 88131008, 93639196, 107016224, 117179776, 133599872, 154229264, 163868593, 176262016, 187278392, 214032448, 308458528, 327737186, 374556784, 428064896, 616917056, 655474372, 749113568, 1233834112, 1310948744, 1498227136, 2621897488, 2996454272, 5243794976, 10487589952, 20975179904]

約数ペア:

[(1, 20975179904), (2, 10487589952), (4, 5243794976), (7, 2996454272), (8, 2621897488), (14, 1498227136), (16, 1310948744), (17, 1233834112), (28, 749113568), (32, 655474372), (34, 616917056), (49, 428064896), (56, 374556784), (64, 327737186), (68, 308458528), (98, 214032448), (112, 187278392), (119, 176262016), (128, 163868593), (136, 154229264), (157, 133599872), (179, 117179776), (196, 107016224), (224, 93639196), (238, 88131008), (272, 77114632), (314, 66799936), (343, 61152128), (358, 58589888), (392, 53508112), (448, 46819598), (476, 44065504), (544, 38557316), (628, 33399968), (686, 30576064), (716, 29294944), (784, 26754056), (833, 25180288), (896, 23409799), (952, 22032752), (1088, 19278658), (1099, 19085696), (1253, 16739968), (1256, 16699984), (1372, 15288032), (1432, 14647472), (1568, 13377028), (1666, 12590144), (1904, 11016376), (2176, 9639329), (2198, 9542848), (2506, 8369984), (2512, 8349992), (2669, 7858816), (2744, 7644016), (2864, 7323736), (3043, 6892928), (3136, 6688514), (3332, 6295072), (3808, 5508188), (4396, 4771424), (5012, 4184992), (5024, 4174996), (5338, 3929408), (5488, 3822008), (5728, 3661868), (5831, 3597184), (6086, 3446464), (6272, 3344257), (6664, 3147536), (7616, 2754094), (7693, 2726528), (8771, 2391424), (8792, 2385712), (10024, 2092496), (10048, 2087498), (10676, 1964704), (10976, 1911004), (11456, 1830934), (11662, 1798592), (12172, 1723232), (13328, 1573768), (15232, 1377047), (15386, 1363264), (17542, 1195712), (17584, 1192856), (18683, 1122688), (20048, 1046248), (20096, 1043749), (21301, 984704), (21352, 982352), (21952, 955502), (22912, 915467), (23324, 899296), (24344, 861616), (26656, 786884), (28103, 746368), (30772, 681632), (35084, 597856), (35168, 596428), (37366, 561344), (40096, 523124), (42602, 492352), (42704, 491176), (43904, 477751), (46648, 449648), (48688, 430808), (53312, 393442), (53851, 389504), (56206, 373184), (61397, 341632), (61544, 340816), (70168, 298928), (70336, 298214), (74732, 280672), (80192, 261562), (85204, 246176), (85408, 245588), (93296, 224824), (97376, 215404), (106624, 196721), (107702, 194752), (112412, 186592), (122794, 170816), (123088, 170408), (130781, 160384), (140336, 149464), (140672, 149107)]