251721984

素因数分解:

$2^8\times 3^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:256

約数の個数: 144

約数和(自身を含む): 705098240

約数和(自身を除く): 453376256

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 48, 62, 64, 93, 96, 97, 109, 124, 128, 186, 192, 194, 218, 248, 256, 291, 327, 372, 384, 388, 436, 496, 582, 654, 744, 768, 776, 872, 992, 1164, 1308, 1488, 1552, 1744, 1984, 2328, 2616, 2976, 3007, 3104, 3379, 3488, 3968, 4656, 5232, 5952, 6014, 6208, 6758, 6976, 7936, 9021, 9312, 10137, 10464, 10573, 11904, 12028, 12416, 13516, 13952, 18042, 18624, 20274, 20928, 21146, 23808, 24056, 24832, 27032, 27904, 31719, 36084, 37248, 40548, 41856, 42292, 48112, 54064, 63438, 72168, 74496, 81096, 83712, 84584, 96224, 108128, 126876, 144336, 162192, 169168, 192448, 216256, 253752, 288672, 324384, 327763, 338336, 384896, 432512, 507504, 577344, 648768, 655526, 676672, 769792, 865024, 983289, 1015008, 1154688, 1297536, 1311052, 1353344, 1966578, 2030016, 2309376, 2595072, 2622104, 2706688, 3933156, 4060032, 5244208, 7866312, 8120064, 10488416, 15732624, 20976832, 31465248, 41953664, 62930496, 83907328, 125860992, 251721984]

約数ペア:

[(1, 251721984), (2, 125860992), (3, 83907328), (4, 62930496), (6, 41953664), (8, 31465248), (12, 20976832), (16, 15732624), (24, 10488416), (31, 8120064), (32, 7866312), (48, 5244208), (62, 4060032), (64, 3933156), (93, 2706688), (96, 2622104), (97, 2595072), (109, 2309376), (124, 2030016), (128, 1966578), (186, 1353344), (192, 1311052), (194, 1297536), (218, 1154688), (248, 1015008), (256, 983289), (291, 865024), (327, 769792), (372, 676672), (384, 655526), (388, 648768), (436, 577344), (496, 507504), (582, 432512), (654, 384896), (744, 338336), (768, 327763), (776, 324384), (872, 288672), (992, 253752), (1164, 216256), (1308, 192448), (1488, 169168), (1552, 162192), (1744, 144336), (1984, 126876), (2328, 108128), (2616, 96224), (2976, 84584), (3007, 83712), (3104, 81096), (3379, 74496), (3488, 72168), (3968, 63438), (4656, 54064), (5232, 48112), (5952, 42292), (6014, 41856), (6208, 40548), (6758, 37248), (6976, 36084), (7936, 31719), (9021, 27904), (9312, 27032), (10137, 24832), (10464, 24056), (10573, 23808), (11904, 21146), (12028, 20928), (12416, 20274), (13516, 18624), (13952, 18042)]