19867660

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 43092000

約数和(自身を除く): 23224340

約数列:

[1, 2, 4, 5, 10, 20, 59, 113, 118, 149, 226, 236, 295, 298, 452, 565, 590, 596, 745, 1130, 1180, 1490, 2260, 2980, 6667, 8791, 13334, 16837, 17582, 26668, 33335, 33674, 35164, 43955, 66670, 67348, 84185, 87910, 133340, 168370, 175820, 336740, 993383, 1986766, 3973532, 4966915, 9933830, 19867660]

約数ペア:

[(1, 19867660), (2, 9933830), (4, 4966915), (5, 3973532), (10, 1986766), (20, 993383), (59, 336740), (113, 175820), (118, 168370), (149, 133340), (226, 87910), (236, 84185), (295, 67348), (298, 66670), (452, 43955), (565, 35164), (590, 33674), (596, 33335), (745, 26668), (1130, 17582), (1180, 16837), (1490, 13334), (2260, 8791), (2980, 6667)]