18200940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{691}}^1$

素因数の和:1142

約数の個数: 48

約数和(自身を含む): 51152640

約数和(自身を除く): 32951700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 439, 691, 878, 1317, 1382, 1756, 2073, 2195, 2634, 2764, 3455, 4146, 4390, 5268, 6585, 6910, 8292, 8780, 10365, 13170, 13820, 20730, 26340, 41460, 303349, 606698, 910047, 1213396, 1516745, 1820094, 3033490, 3640188, 4550235, 6066980, 9100470, 18200940]

約数ペア:

[(1, 18200940), (2, 9100470), (3, 6066980), (4, 4550235), (5, 3640188), (6, 3033490), (10, 1820094), (12, 1516745), (15, 1213396), (20, 910047), (30, 606698), (60, 303349), (439, 41460), (691, 26340), (878, 20730), (1317, 13820), (1382, 13170), (1756, 10365), (2073, 8780), (2195, 8292), (2634, 6910), (2764, 6585), (3455, 5268), (4146, 4390)]