2912169980

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{409}}^1\times {\mathrm{1789}}^1$

素因数の和:2406

約数の個数: 48

約数和(自身を含む): 6164760000

約数和(自身を除く): 3252590020

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 409, 796, 818, 995, 1636, 1789, 1990, 2045, 3578, 3980, 4090, 7156, 8180, 8945, 17890, 35780, 81391, 162782, 325564, 356011, 406955, 712022, 731701, 813910, 1424044, 1463402, 1627820, 1780055, 2926804, 3560110, 3658505, 7120220, 7317010, 14634020, 145608499, 291216998, 582433996, 728042495, 1456084990, 2912169980]

約数ペア:

[(1, 2912169980), (2, 1456084990), (4, 728042495), (5, 582433996), (10, 291216998), (20, 145608499), (199, 14634020), (398, 7317010), (409, 7120220), (796, 3658505), (818, 3560110), (995, 2926804), (1636, 1780055), (1789, 1627820), (1990, 1463402), (2045, 1424044), (3578, 813910), (3980, 731701), (4090, 712022), (7156, 406955), (8180, 356011), (8945, 325564), (17890, 162782), (35780, 81391)]