2019955405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{383}}^1\times {\mathrm{1979}}^1$

素因数の和:2421

約数の個数: 32

約数和(自身を含む): 2682408960

約数和(自身を除く): 662453555

約数列:

[1, 5, 13, 41, 65, 205, 383, 533, 1915, 1979, 2665, 4979, 9895, 15703, 24895, 25727, 78515, 81139, 128635, 204139, 405695, 757957, 1020695, 1054807, 3789785, 5274035, 9853441, 31076237, 49267205, 155381185, 403991081, 2019955405]

約数ペア:

[(1, 2019955405), (5, 403991081), (13, 155381185), (41, 49267205), (65, 31076237), (205, 9853441), (383, 5274035), (533, 3789785), (1915, 1054807), (1979, 1020695), (2665, 757957), (4979, 405695), (9895, 204139), (15703, 128635), (24895, 81139), (25727, 78515)]