280726880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{587}}^1$

素因数の和:677

約数の個数: 144

約数和(自身を含む): 785480976

約数和(自身を除く): 504754096

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 61, 70, 80, 98, 112, 122, 140, 160, 196, 224, 244, 245, 280, 305, 392, 427, 488, 490, 560, 587, 610, 784, 854, 976, 980, 1120, 1174, 1220, 1568, 1708, 1952, 1960, 2135, 2348, 2440, 2935, 2989, 3416, 3920, 4109, 4270, 4696, 4880, 5870, 5978, 6832, 7840, 8218, 8540, 9392, 9760, 11740, 11956, 13664, 14945, 16436, 17080, 18784, 20545, 23480, 23912, 28763, 29890, 32872, 34160, 35807, 41090, 46960, 47824, 57526, 59780, 65744, 68320, 71614, 82180, 93920, 95648, 115052, 119560, 131488, 143228, 143815, 164360, 179035, 230104, 239120, 250649, 286456, 287630, 328720, 358070, 460208, 478240, 501298, 572912, 575260, 657440, 716140, 920416, 1002596, 1145824, 1150520, 1253245, 1432280, 1754543, 2005192, 2301040, 2506490, 2864560, 3509086, 4010384, 4602080, 5012980, 5729120, 7018172, 8020768, 8772715, 10025960, 14036344, 17545430, 20051920, 28072688, 35090860, 40103840, 56145376, 70181720, 140363440, 280726880]

約数ペア:

[(1, 280726880), (2, 140363440), (4, 70181720), (5, 56145376), (7, 40103840), (8, 35090860), (10, 28072688), (14, 20051920), (16, 17545430), (20, 14036344), (28, 10025960), (32, 8772715), (35, 8020768), (40, 7018172), (49, 5729120), (56, 5012980), (61, 4602080), (70, 4010384), (80, 3509086), (98, 2864560), (112, 2506490), (122, 2301040), (140, 2005192), (160, 1754543), (196, 1432280), (224, 1253245), (244, 1150520), (245, 1145824), (280, 1002596), (305, 920416), (392, 716140), (427, 657440), (488, 575260), (490, 572912), (560, 501298), (587, 478240), (610, 460208), (784, 358070), (854, 328720), (976, 287630), (980, 286456), (1120, 250649), (1174, 239120), (1220, 230104), (1568, 179035), (1708, 164360), (1952, 143815), (1960, 143228), (2135, 131488), (2348, 119560), (2440, 115052), (2935, 95648), (2989, 93920), (3416, 82180), (3920, 71614), (4109, 68320), (4270, 65744), (4696, 59780), (4880, 57526), (5870, 47824), (5978, 46960), (6832, 41090), (7840, 35807), (8218, 34160), (8540, 32872), (9392, 29890), (9760, 28763), (11740, 23912), (11956, 23480), (13664, 20545), (14945, 18784), (16436, 17080)]