290648440

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{3529}}^1$

素因数の和:3640

約数の個数: 64

約数和(自身を含む): 686232000

約数和(自身を除く): 395583560

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 71, 116, 142, 145, 232, 284, 290, 355, 568, 580, 710, 1160, 1420, 2059, 2840, 3529, 4118, 7058, 8236, 10295, 14116, 16472, 17645, 20590, 28232, 35290, 41180, 70580, 82360, 102341, 141160, 204682, 250559, 409364, 501118, 511705, 818728, 1002236, 1023410, 1252795, 2004472, 2046820, 2505590, 4093640, 5011180, 7266211, 10022360, 14532422, 29064844, 36331055, 58129688, 72662110, 145324220, 290648440]

約数ペア:

[(1, 290648440), (2, 145324220), (4, 72662110), (5, 58129688), (8, 36331055), (10, 29064844), (20, 14532422), (29, 10022360), (40, 7266211), (58, 5011180), (71, 4093640), (116, 2505590), (142, 2046820), (145, 2004472), (232, 1252795), (284, 1023410), (290, 1002236), (355, 818728), (568, 511705), (580, 501118), (710, 409364), (1160, 250559), (1420, 204682), (2059, 141160), (2840, 102341), (3529, 82360), (4118, 70580), (7058, 41180), (8236, 35290), (10295, 28232), (14116, 20590), (16472, 17645)]