251354768

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{433}}^1$

素因数の和:592

約数の個数: 80

約数和(自身を含む): 573463296

約数和(自身を除く): 322108528

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 73, 112, 142, 146, 284, 292, 433, 497, 511, 568, 584, 866, 994, 1022, 1136, 1168, 1732, 1988, 2044, 3031, 3464, 3976, 4088, 5183, 6062, 6928, 7952, 8176, 10366, 12124, 20732, 24248, 30743, 31609, 36281, 41464, 48496, 61486, 63218, 72562, 82928, 122972, 126436, 145124, 215201, 221263, 245944, 252872, 290248, 430402, 442526, 491888, 505744, 580496, 860804, 885052, 1721608, 1770104, 2244239, 3443216, 3540208, 4488478, 8976956, 15709673, 17953912, 31419346, 35907824, 62838692, 125677384, 251354768]

約数ペア:

[(1, 251354768), (2, 125677384), (4, 62838692), (7, 35907824), (8, 31419346), (14, 17953912), (16, 15709673), (28, 8976956), (56, 4488478), (71, 3540208), (73, 3443216), (112, 2244239), (142, 1770104), (146, 1721608), (284, 885052), (292, 860804), (433, 580496), (497, 505744), (511, 491888), (568, 442526), (584, 430402), (866, 290248), (994, 252872), (1022, 245944), (1136, 221263), (1168, 215201), (1732, 145124), (1988, 126436), (2044, 122972), (3031, 82928), (3464, 72562), (3976, 63218), (4088, 61486), (5183, 48496), (6062, 41464), (6928, 36281), (7952, 31609), (8176, 30743), (10366, 24248), (12124, 20732)]