880147220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{659}}^1\times {\mathrm{1553}}^1$

素因数の和:2264

約数の個数: 48

約数和(自身を含む): 1895382720

約数和(自身を除く): 1015235500

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 659, 860, 1318, 1553, 2636, 3106, 3295, 6212, 6590, 7765, 13180, 15530, 28337, 31060, 56674, 66779, 113348, 133558, 141685, 267116, 283370, 333895, 566740, 667790, 1023427, 1335580, 2046854, 4093708, 5117135, 10234270, 20468540, 44007361, 88014722, 176029444, 220036805, 440073610, 880147220]

約数ペア:

[(1, 880147220), (2, 440073610), (4, 220036805), (5, 176029444), (10, 88014722), (20, 44007361), (43, 20468540), (86, 10234270), (172, 5117135), (215, 4093708), (430, 2046854), (659, 1335580), (860, 1023427), (1318, 667790), (1553, 566740), (2636, 333895), (3106, 283370), (3295, 267116), (6212, 141685), (6590, 133558), (7765, 113348), (13180, 66779), (15530, 56674), (28337, 31060)]