2898889720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{631}}^1\times {\mathrm{2671}}^1$

素因数の和:3356

約数の個数: 64

約数和(自身を含む): 6687267840

約数和(自身を除く): 3788378120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 631, 860, 1262, 1720, 2524, 2671, 3155, 5048, 5342, 6310, 10684, 12620, 13355, 21368, 25240, 26710, 27133, 53420, 54266, 106840, 108532, 114853, 135665, 217064, 229706, 271330, 459412, 542660, 574265, 918824, 1085320, 1148530, 1685401, 2297060, 3370802, 4594120, 6741604, 8427005, 13483208, 16854010, 33708020, 67416040, 72472243, 144944486, 289888972, 362361215, 579777944, 724722430, 1449444860, 2898889720]

約数ペア:

[(1, 2898889720), (2, 1449444860), (4, 724722430), (5, 579777944), (8, 362361215), (10, 289888972), (20, 144944486), (40, 72472243), (43, 67416040), (86, 33708020), (172, 16854010), (215, 13483208), (344, 8427005), (430, 6741604), (631, 4594120), (860, 3370802), (1262, 2297060), (1720, 1685401), (2524, 1148530), (2671, 1085320), (3155, 918824), (5048, 574265), (5342, 542660), (6310, 459412), (10684, 271330), (12620, 229706), (13355, 217064), (21368, 135665), (25240, 114853), (26710, 108532), (27133, 106840), (53420, 54266)]