1291628

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{421}}^1$

素因数の和:497

約数の個数: 24

約数和(自身を含む): 2481360

約数和(自身を除く): 1189732

約数列:

[1, 2, 4, 13, 26, 52, 59, 118, 236, 421, 767, 842, 1534, 1684, 3068, 5473, 10946, 21892, 24839, 49678, 99356, 322907, 645814, 1291628]

約数ペア:

[(1, 1291628), (2, 645814), (4, 322907), (13, 99356), (26, 49678), (52, 24839), (59, 21892), (118, 10946), (236, 5473), (421, 3068), (767, 1684), (842, 1534)]