279900460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{971}}^1$

素因数の和:1087

約数の個数: 96

約数和(自身を含む): 705438720

約数和(自身を除く): 425538260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 71, 116, 140, 142, 145, 203, 284, 290, 355, 406, 497, 580, 710, 812, 971, 994, 1015, 1420, 1942, 1988, 2030, 2059, 2485, 3884, 4060, 4118, 4855, 4970, 6797, 8236, 9710, 9940, 10295, 13594, 14413, 19420, 20590, 27188, 28159, 28826, 33985, 41180, 56318, 57652, 67970, 68941, 72065, 112636, 135940, 137882, 140795, 144130, 197113, 275764, 281590, 288260, 344705, 394226, 482587, 563180, 689410, 788452, 965174, 985565, 1378820, 1930348, 1971130, 1999289, 2412935, 3942260, 3998578, 4825870, 7997156, 9651740, 9996445, 13995023, 19992890, 27990046, 39985780, 55980092, 69975115, 139950230, 279900460]

約数ペア:

[(1, 279900460), (2, 139950230), (4, 69975115), (5, 55980092), (7, 39985780), (10, 27990046), (14, 19992890), (20, 13995023), (28, 9996445), (29, 9651740), (35, 7997156), (58, 4825870), (70, 3998578), (71, 3942260), (116, 2412935), (140, 1999289), (142, 1971130), (145, 1930348), (203, 1378820), (284, 985565), (290, 965174), (355, 788452), (406, 689410), (497, 563180), (580, 482587), (710, 394226), (812, 344705), (971, 288260), (994, 281590), (1015, 275764), (1420, 197113), (1942, 144130), (1988, 140795), (2030, 137882), (2059, 135940), (2485, 112636), (3884, 72065), (4060, 68941), (4118, 67970), (4855, 57652), (4970, 56318), (6797, 41180), (8236, 33985), (9710, 28826), (9940, 28159), (10295, 27188), (13594, 20590), (14413, 19420)]