9969157420

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2530243}}^1$

素因数の和:2530449

約数の個数: 24

約数和(自身を含む): 21041509104

約数和(自身を除く): 11072351684

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 2530243, 5060486, 10120972, 12651215, 25302430, 50604860, 498457871, 996915742, 1993831484, 2492289355, 4984578710, 9969157420]

約数ペア:

[(1, 9969157420), (2, 4984578710), (4, 2492289355), (5, 1993831484), (10, 996915742), (20, 498457871), (197, 50604860), (394, 25302430), (788, 12651215), (985, 10120972), (1970, 5060486), (3940, 2530243)]