19835360

素因数分解:

$2^5\times 5^1\times {\mathrm{151}}^1\times {\mathrm{821}}^1$

素因数の和:987

約数の個数: 48

約数和(自身を含む): 47228832

約数和(自身を除く): 27393472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 151, 160, 302, 604, 755, 821, 1208, 1510, 1642, 2416, 3020, 3284, 4105, 4832, 6040, 6568, 8210, 12080, 13136, 16420, 24160, 26272, 32840, 65680, 123971, 131360, 247942, 495884, 619855, 991768, 1239710, 1983536, 2479420, 3967072, 4958840, 9917680, 19835360]

約数ペア:

[(1, 19835360), (2, 9917680), (4, 4958840), (5, 3967072), (8, 2479420), (10, 1983536), (16, 1239710), (20, 991768), (32, 619855), (40, 495884), (80, 247942), (151, 131360), (160, 123971), (302, 65680), (604, 32840), (755, 26272), (821, 24160), (1208, 16420), (1510, 13136), (1642, 12080), (2416, 8210), (3020, 6568), (3284, 6040), (4105, 4832)]