81890830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{22073}}^1$

素因数の和:22140

約数の個数: 32

約数和(自身を含む): 171647424

約数和(自身を除く): 89756594

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 371, 530, 742, 1855, 3710, 22073, 44146, 110365, 154511, 220730, 309022, 772555, 1169869, 1545110, 2339738, 5849345, 8189083, 11698690, 16378166, 40945415, 81890830]

約数ペア:

[(1, 81890830), (2, 40945415), (5, 16378166), (7, 11698690), (10, 8189083), (14, 5849345), (35, 2339738), (53, 1545110), (70, 1169869), (106, 772555), (265, 309022), (371, 220730), (530, 154511), (742, 110365), (1855, 44146), (3710, 22073)]