278805301840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{563}}^1\times {\mathrm{476167}}^1$

素因数の和:476756

約数の個数: 80

約数和(自身を含む): 699326990208

約数和(自身を除く): 420521688368

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 563, 1040, 1126, 2252, 2815, 4504, 5630, 7319, 9008, 11260, 14638, 22520, 29276, 36595, 45040, 58552, 73190, 117104, 146380, 292760, 476167, 585520, 952334, 1904668, 2380835, 3809336, 4761670, 6190171, 7618672, 9523340, 12380342, 19046680, 24760684, 30950855, 38093360, 49521368, 61901710, 99042736, 123803420, 247606840, 268082021, 495213680, 536164042, 1072328084, 1340410105, 2144656168, 2680820210, 3485066273, 4289312336, 5361640420, 6970132546, 10723280840, 13940265092, 17425331365, 21446561680, 27880530184, 34850662730, 55761060368, 69701325460, 139402650920, 278805301840]

約数ペア:

[(1, 278805301840), (2, 139402650920), (4, 69701325460), (5, 55761060368), (8, 34850662730), (10, 27880530184), (13, 21446561680), (16, 17425331365), (20, 13940265092), (26, 10723280840), (40, 6970132546), (52, 5361640420), (65, 4289312336), (80, 3485066273), (104, 2680820210), (130, 2144656168), (208, 1340410105), (260, 1072328084), (520, 536164042), (563, 495213680), (1040, 268082021), (1126, 247606840), (2252, 123803420), (2815, 99042736), (4504, 61901710), (5630, 49521368), (7319, 38093360), (9008, 30950855), (11260, 24760684), (14638, 19046680), (22520, 12380342), (29276, 9523340), (36595, 7618672), (45040, 6190171), (58552, 4761670), (73190, 3809336), (117104, 2380835), (146380, 1904668), (292760, 952334), (476167, 585520)]