2628490

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:238

約数の個数: 32

約数和(自身を含む): 4999680

約数和(自身を除く): 2371190

約数列:

[1, 2, 5, 10, 31, 61, 62, 122, 139, 155, 278, 305, 310, 610, 695, 1390, 1891, 3782, 4309, 8479, 8618, 9455, 16958, 18910, 21545, 42395, 43090, 84790, 262849, 525698, 1314245, 2628490]

約数ペア:

[(1, 2628490), (2, 1314245), (5, 525698), (10, 262849), (31, 84790), (61, 43090), (62, 42395), (122, 21545), (139, 18910), (155, 16958), (278, 9455), (305, 8618), (310, 8479), (610, 4309), (695, 3782), (1390, 1891)]