11887817980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{991}}^1\times {\mathrm{14629}}^1$

素因数の和:15670

約数の個数: 48

約数和(自身を含む): 25600861440

約数和(自身を除く): 13713043460

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 991, 1982, 3964, 4955, 9910, 14629, 19820, 29258, 40631, 58516, 73145, 81262, 146290, 162524, 203155, 292580, 406310, 599789, 812620, 1199578, 2399156, 2998945, 5997890, 11995780, 14497339, 28994678, 57989356, 72486695, 144973390, 289946780, 594390899, 1188781798, 2377563596, 2971954495, 5943908990, 11887817980]

約数ペア:

[(1, 11887817980), (2, 5943908990), (4, 2971954495), (5, 2377563596), (10, 1188781798), (20, 594390899), (41, 289946780), (82, 144973390), (164, 72486695), (205, 57989356), (410, 28994678), (820, 14497339), (991, 11995780), (1982, 5997890), (3964, 2998945), (4955, 2399156), (9910, 1199578), (14629, 812620), (19820, 599789), (29258, 406310), (40631, 292580), (58516, 203155), (73145, 162524), (81262, 146290)]