1549255280

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^2\times {\mathrm{499}}^1$

素因数の和:906

約数の個数: 60

約数和(自身を含む): 3627651000

約数和(自身を除く): 2078395720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 499, 788, 985, 998, 1576, 1970, 1996, 2495, 3152, 3940, 3992, 4990, 7880, 7984, 9980, 15760, 19960, 38809, 39920, 77618, 98303, 155236, 194045, 196606, 310472, 388090, 393212, 491515, 620944, 776180, 786424, 983030, 1552360, 1572848, 1966060, 3104720, 3932120, 7864240, 19365691, 38731382, 77462764, 96828455, 154925528, 193656910, 309851056, 387313820, 774627640, 1549255280]

約数ペア:

[(1, 1549255280), (2, 774627640), (4, 387313820), (5, 309851056), (8, 193656910), (10, 154925528), (16, 96828455), (20, 77462764), (40, 38731382), (80, 19365691), (197, 7864240), (394, 3932120), (499, 3104720), (788, 1966060), (985, 1572848), (998, 1552360), (1576, 983030), (1970, 786424), (1996, 776180), (2495, 620944), (3152, 491515), (3940, 393212), (3992, 388090), (4990, 310472), (7880, 196606), (7984, 194045), (9980, 155236), (15760, 98303), (19960, 77618), (38809, 39920)]