20215398515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1429}}^1\times {\mathrm{2113}}^1$

素因数の和:3663

約数の個数: 32

約数和(自身を含む): 26409102720

約数和(自身を除く): 6193704205

約数列:

[1, 5, 13, 65, 103, 515, 1339, 1429, 2113, 6695, 7145, 10565, 18577, 27469, 92885, 137345, 147187, 217639, 735935, 1088195, 1913431, 2829307, 3019477, 9567155, 14146535, 15097385, 39253201, 196266005, 311006131, 1555030655, 4043079703, 20215398515]

約数ペア:

[(1, 20215398515), (5, 4043079703), (13, 1555030655), (65, 311006131), (103, 196266005), (515, 39253201), (1339, 15097385), (1429, 14146535), (2113, 9567155), (6695, 3019477), (7145, 2829307), (10565, 1913431), (18577, 1088195), (27469, 735935), (92885, 217639), (137345, 147187)]