1636660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 3729600

約数和(自身を除く): 2092940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 59, 73, 76, 95, 118, 146, 190, 236, 292, 295, 365, 380, 590, 730, 1121, 1180, 1387, 1460, 2242, 2774, 4307, 4484, 5548, 5605, 6935, 8614, 11210, 13870, 17228, 21535, 22420, 27740, 43070, 81833, 86140, 163666, 327332, 409165, 818330, 1636660]

約数ペア:

[(1, 1636660), (2, 818330), (4, 409165), (5, 327332), (10, 163666), (19, 86140), (20, 81833), (38, 43070), (59, 27740), (73, 22420), (76, 21535), (95, 17228), (118, 13870), (146, 11210), (190, 8614), (236, 6935), (292, 5605), (295, 5548), (365, 4484), (380, 4307), (590, 2774), (730, 2242), (1121, 1460), (1180, 1387)]