20745810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{653}}^1$

素因数の和:1019

約数の個数: 48

約数和(自身を含む): 54174744

約数和(自身を除く): 33428934

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 353, 653, 706, 1059, 1306, 1765, 1959, 2118, 3177, 3265, 3530, 3918, 5295, 5877, 6354, 6530, 9795, 10590, 11754, 15885, 19590, 29385, 31770, 58770, 230509, 461018, 691527, 1152545, 1383054, 2074581, 2305090, 3457635, 4149162, 6915270, 10372905, 20745810]

約数ペア:

[(1, 20745810), (2, 10372905), (3, 6915270), (5, 4149162), (6, 3457635), (9, 2305090), (10, 2074581), (15, 1383054), (18, 1152545), (30, 691527), (45, 461018), (90, 230509), (353, 58770), (653, 31770), (706, 29385), (1059, 19590), (1306, 15885), (1765, 11754), (1959, 10590), (2118, 9795), (3177, 6530), (3265, 6354), (3530, 5877), (3918, 5295)]