87307720

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{20399}}^1$

素因数の和:20517

約数の個数: 32

約数和(自身を含む): 198288000

約数和(自身を除く): 110980280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 20399, 40798, 81596, 101995, 163192, 203990, 407980, 815960, 2182693, 4365386, 8730772, 10913465, 17461544, 21826930, 43653860, 87307720]

約数ペア:

[(1, 87307720), (2, 43653860), (4, 21826930), (5, 17461544), (8, 10913465), (10, 8730772), (20, 4365386), (40, 2182693), (107, 815960), (214, 407980), (428, 203990), (535, 163192), (856, 101995), (1070, 81596), (2140, 40798), (4280, 20399)]