20505540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31069}}^1$

素因数の和:31092

約数の個数: 48

約数和(自身を含む): 62637120

約数和(自身を除く): 42131580

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 31069, 62138, 93207, 124276, 155345, 186414, 310690, 341759, 372828, 466035, 621380, 683518, 932070, 1025277, 1367036, 1708795, 1864140, 2050554, 3417590, 4101108, 5126385, 6835180, 10252770, 20505540]

約数ペア:

[(1, 20505540), (2, 10252770), (3, 6835180), (4, 5126385), (5, 4101108), (6, 3417590), (10, 2050554), (11, 1864140), (12, 1708795), (15, 1367036), (20, 1025277), (22, 932070), (30, 683518), (33, 621380), (44, 466035), (55, 372828), (60, 341759), (66, 310690), (110, 186414), (132, 155345), (165, 124276), (220, 93207), (330, 62138), (660, 31069)]