20713100

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4817}}^1$

素因数の和:4874

約数の個数: 36

約数和(自身を含む): 46002264

約数和(自身を除く): 25289164

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 4817, 9634, 19268, 24085, 48170, 96340, 120425, 207131, 240850, 414262, 481700, 828524, 1035655, 2071310, 4142620, 5178275, 10356550, 20713100]

約数ペア:

[(1, 20713100), (2, 10356550), (4, 5178275), (5, 4142620), (10, 2071310), (20, 1035655), (25, 828524), (43, 481700), (50, 414262), (86, 240850), (100, 207131), (172, 120425), (215, 96340), (430, 48170), (860, 24085), (1075, 19268), (2150, 9634), (4300, 4817)]