221150720

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:121

約数の個数: 240

約数和(自身を含む): 646552368

約数和(自身を除く): 425401648

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 43, 49, 56, 64, 70, 80, 82, 86, 98, 112, 128, 140, 160, 164, 172, 196, 205, 215, 224, 245, 256, 280, 287, 301, 320, 328, 344, 392, 410, 430, 448, 490, 512, 560, 574, 602, 640, 656, 688, 784, 820, 860, 896, 980, 1120, 1148, 1204, 1280, 1312, 1376, 1435, 1505, 1568, 1640, 1720, 1763, 1792, 1960, 2009, 2107, 2240, 2296, 2408, 2560, 2624, 2752, 2870, 3010, 3136, 3280, 3440, 3526, 3584, 3920, 4018, 4214, 4480, 4592, 4816, 5248, 5504, 5740, 6020, 6272, 6560, 6880, 7052, 7840, 8036, 8428, 8815, 8960, 9184, 9632, 10045, 10496, 10535, 11008, 11480, 12040, 12341, 12544, 13120, 13760, 14104, 15680, 16072, 16856, 17630, 17920, 18368, 19264, 20090, 20992, 21070, 22016, 22960, 24080, 24682, 25088, 26240, 27520, 28208, 31360, 32144, 33712, 35260, 36736, 38528, 40180, 42140, 45920, 48160, 49364, 52480, 55040, 56416, 61705, 62720, 64288, 67424, 70520, 73472, 77056, 80360, 84280, 86387, 91840, 96320, 98728, 104960, 110080, 112832, 123410, 125440, 128576, 134848, 141040, 146944, 154112, 160720, 168560, 172774, 183680, 192640, 197456, 225664, 246820, 257152, 269696, 282080, 321440, 337120, 345548, 367360, 385280, 394912, 431935, 451328, 493640, 514304, 539392, 564160, 642880, 674240, 691096, 734720, 770560, 789824, 863870, 902656, 987280, 1028608, 1078784, 1128320, 1285760, 1348480, 1382192, 1579648, 1727740, 1974560, 2256640, 2571520, 2696960, 2764384, 3159296, 3455480, 3949120, 4513280, 5143040, 5393920, 5528768, 6318592, 6910960, 7898240, 11057536, 13821920, 15796480, 22115072, 27643840, 31592960, 44230144, 55287680, 110575360, 221150720]

約数ペア:

[(1, 221150720), (2, 110575360), (4, 55287680), (5, 44230144), (7, 31592960), (8, 27643840), (10, 22115072), (14, 15796480), (16, 13821920), (20, 11057536), (28, 7898240), (32, 6910960), (35, 6318592), (40, 5528768), (41, 5393920), (43, 5143040), (49, 4513280), (56, 3949120), (64, 3455480), (70, 3159296), (80, 2764384), (82, 2696960), (86, 2571520), (98, 2256640), (112, 1974560), (128, 1727740), (140, 1579648), (160, 1382192), (164, 1348480), (172, 1285760), (196, 1128320), (205, 1078784), (215, 1028608), (224, 987280), (245, 902656), (256, 863870), (280, 789824), (287, 770560), (301, 734720), (320, 691096), (328, 674240), (344, 642880), (392, 564160), (410, 539392), (430, 514304), (448, 493640), (490, 451328), (512, 431935), (560, 394912), (574, 385280), (602, 367360), (640, 345548), (656, 337120), (688, 321440), (784, 282080), (820, 269696), (860, 257152), (896, 246820), (980, 225664), (1120, 197456), (1148, 192640), (1204, 183680), (1280, 172774), (1312, 168560), (1376, 160720), (1435, 154112), (1505, 146944), (1568, 141040), (1640, 134848), (1720, 128576), (1763, 125440), (1792, 123410), (1960, 112832), (2009, 110080), (2107, 104960), (2240, 98728), (2296, 96320), (2408, 91840), (2560, 86387), (2624, 84280), (2752, 80360), (2870, 77056), (3010, 73472), (3136, 70520), (3280, 67424), (3440, 64288), (3526, 62720), (3584, 61705), (3920, 56416), (4018, 55040), (4214, 52480), (4480, 49364), (4592, 48160), (4816, 45920), (5248, 42140), (5504, 40180), (5740, 38528), (6020, 36736), (6272, 35260), (6560, 33712), (6880, 32144), (7052, 31360), (7840, 28208), (8036, 27520), (8428, 26240), (8815, 25088), (8960, 24682), (9184, 24080), (9632, 22960), (10045, 22016), (10496, 21070), (10535, 20992), (11008, 20090), (11480, 19264), (12040, 18368), (12341, 17920), (12544, 17630), (13120, 16856), (13760, 16072), (14104, 15680)]