22154840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 52488000

約数和(自身を除く): 30333160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 71, 116, 142, 145, 232, 269, 284, 290, 355, 538, 568, 580, 710, 1076, 1160, 1345, 1420, 2059, 2152, 2690, 2840, 4118, 5380, 7801, 8236, 10295, 10760, 15602, 16472, 19099, 20590, 31204, 38198, 39005, 41180, 62408, 76396, 78010, 82360, 95495, 152792, 156020, 190990, 312040, 381980, 553871, 763960, 1107742, 2215484, 2769355, 4430968, 5538710, 11077420, 22154840]

約数ペア:

[(1, 22154840), (2, 11077420), (4, 5538710), (5, 4430968), (8, 2769355), (10, 2215484), (20, 1107742), (29, 763960), (40, 553871), (58, 381980), (71, 312040), (116, 190990), (142, 156020), (145, 152792), (232, 95495), (269, 82360), (284, 78010), (290, 76396), (355, 62408), (538, 41180), (568, 39005), (580, 38198), (710, 31204), (1076, 20590), (1160, 19099), (1345, 16472), (1420, 15602), (2059, 10760), (2152, 10295), (2690, 8236), (2840, 7801), (4118, 5380)]