19749560

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3769}}^1$

素因数の和:3911

約数の個数: 32

約数和(自身を含む): 44787600

約数和(自身を除く): 25038040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 3769, 5240, 7538, 15076, 18845, 30152, 37690, 75380, 150760, 493739, 987478, 1974956, 2468695, 3949912, 4937390, 9874780, 19749560]

約数ペア:

[(1, 19749560), (2, 9874780), (4, 4937390), (5, 3949912), (8, 2468695), (10, 1974956), (20, 987478), (40, 493739), (131, 150760), (262, 75380), (524, 37690), (655, 30152), (1048, 18845), (1310, 15076), (2620, 7538), (3769, 5240)]