63891985

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{1987}}^1$

素因数の和:2160

約数の個数: 16

約数和(自身を含む): 78724800

約数和(自身を除く): 14832815

約数列:

[1, 5, 59, 109, 295, 545, 1987, 6431, 9935, 32155, 117233, 216583, 586165, 1082915, 12778397, 63891985]

約数ペア:

[(1, 63891985), (5, 12778397), (59, 1082915), (109, 586165), (295, 216583), (545, 117233), (1987, 32155), (6431, 9935)]