72459640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{1361}}^1$

素因数の和:1405

約数の個数: 64

約数和(自身を含む): 179457120

約数和(自身を除く): 106997480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 1331, 1361, 2420, 2662, 2722, 4840, 5324, 5444, 6655, 6805, 10648, 10888, 13310, 13610, 14971, 26620, 27220, 29942, 53240, 54440, 59884, 74855, 119768, 149710, 164681, 299420, 329362, 598840, 658724, 823405, 1317448, 1646810, 1811491, 3293620, 3622982, 6587240, 7245964, 9057455, 14491928, 18114910, 36229820, 72459640]

約数ペア:

[(1, 72459640), (2, 36229820), (4, 18114910), (5, 14491928), (8, 9057455), (10, 7245964), (11, 6587240), (20, 3622982), (22, 3293620), (40, 1811491), (44, 1646810), (55, 1317448), (88, 823405), (110, 658724), (121, 598840), (220, 329362), (242, 299420), (440, 164681), (484, 149710), (605, 119768), (968, 74855), (1210, 59884), (1331, 54440), (1361, 53240), (2420, 29942), (2662, 27220), (2722, 26620), (4840, 14971), (5324, 13610), (5444, 13310), (6655, 10888), (6805, 10648)]