20376265

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2357}}^1$

素因数の和:2401

約数の個数: 32

約数和(自身を含む): 31691520

約数和(自身を除く): 11315255

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 1235, 1729, 2357, 8645, 11785, 16499, 30641, 44783, 82495, 153205, 214487, 223915, 313481, 582179, 1072435, 1567405, 2910895, 4075253, 20376265]

約数ペア:

[(1, 20376265), (5, 4075253), (7, 2910895), (13, 1567405), (19, 1072435), (35, 582179), (65, 313481), (91, 223915), (95, 214487), (133, 153205), (247, 82495), (455, 44783), (665, 30641), (1235, 16499), (1729, 11785), (2357, 8645)]