30912020

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^2\times {\mathrm{1129}}^1$

素因数の和:1212

約数の個数: 36

約数和(自身を含む): 66776220

約数和(自身を除く): 35864200

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 1129, 1369, 2258, 2738, 4516, 5476, 5645, 6845, 11290, 13690, 22580, 27380, 41773, 83546, 167092, 208865, 417730, 835460, 1545601, 3091202, 6182404, 7728005, 15456010, 30912020]

約数ペア:

[(1, 30912020), (2, 15456010), (4, 7728005), (5, 6182404), (10, 3091202), (20, 1545601), (37, 835460), (74, 417730), (148, 208865), (185, 167092), (370, 83546), (740, 41773), (1129, 27380), (1369, 22580), (2258, 13690), (2738, 11290), (4516, 6845), (5476, 5645)]