638900912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{13183}}^1$

素因数の和:13437

約数の個数: 40

約数和(自身を含む): 1338914304

約数和(自身を除く): 700013392

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 233, 466, 932, 1864, 3029, 3728, 6058, 12116, 13183, 24232, 26366, 48464, 52732, 105464, 171379, 210928, 342758, 685516, 1371032, 2742064, 3071639, 6143278, 12286556, 24573112, 39931307, 49146224, 79862614, 159725228, 319450456, 638900912]

約数ペア:

[(1, 638900912), (2, 319450456), (4, 159725228), (8, 79862614), (13, 49146224), (16, 39931307), (26, 24573112), (52, 12286556), (104, 6143278), (208, 3071639), (233, 2742064), (466, 1371032), (932, 685516), (1864, 342758), (3029, 210928), (3728, 171379), (6058, 105464), (12116, 52732), (13183, 48464), (24232, 26366)]