20345050

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{521}}^1$

素因数の和:615

約数の個数: 48

約数和(自身を含む): 41943744

約数和(自身を除く): 21598694

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 71, 110, 142, 275, 355, 521, 550, 710, 781, 1042, 1562, 1775, 2605, 3550, 3905, 5210, 5731, 7810, 11462, 13025, 19525, 26050, 28655, 36991, 39050, 57310, 73982, 143275, 184955, 286550, 369910, 406901, 813802, 924775, 1849550, 2034505, 4069010, 10172525, 20345050]

約数ペア:

[(1, 20345050), (2, 10172525), (5, 4069010), (10, 2034505), (11, 1849550), (22, 924775), (25, 813802), (50, 406901), (55, 369910), (71, 286550), (110, 184955), (142, 143275), (275, 73982), (355, 57310), (521, 39050), (550, 36991), (710, 28655), (781, 26050), (1042, 19525), (1562, 13025), (1775, 11462), (2605, 7810), (3550, 5731), (3905, 5210)]