317961020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{761}}^1\times {\mathrm{1607}}^1$

素因数の和:2390

約数の個数: 48

約数和(自身を含む): 720474048

約数和(自身を除く): 402513028

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 761, 1522, 1607, 3044, 3214, 3805, 6428, 7610, 8035, 9893, 15220, 16070, 19786, 20891, 32140, 39572, 41782, 49465, 83564, 98930, 104455, 197860, 208910, 417820, 1222927, 2445854, 4891708, 6114635, 12229270, 15898051, 24458540, 31796102, 63592204, 79490255, 158980510, 317961020]

約数ペア:

[(1, 317961020), (2, 158980510), (4, 79490255), (5, 63592204), (10, 31796102), (13, 24458540), (20, 15898051), (26, 12229270), (52, 6114635), (65, 4891708), (130, 2445854), (260, 1222927), (761, 417820), (1522, 208910), (1607, 197860), (3044, 104455), (3214, 98930), (3805, 83564), (6428, 49465), (7610, 41782), (8035, 39572), (9893, 32140), (15220, 20891), (16070, 19786)]