20505660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{48823}}^1$

素因数の和:48842

約数の個数: 48

約数和(自身を含む): 65619456

約数和(自身を除く): 45113796

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 48823, 97646, 146469, 195292, 244115, 292938, 341761, 488230, 585876, 683522, 732345, 976460, 1025283, 1367044, 1464690, 1708805, 2050566, 2929380, 3417610, 4101132, 5126415, 6835220, 10252830, 20505660]

約数ペア:

[(1, 20505660), (2, 10252830), (3, 6835220), (4, 5126415), (5, 4101132), (6, 3417610), (7, 2929380), (10, 2050566), (12, 1708805), (14, 1464690), (15, 1367044), (20, 1025283), (21, 976460), (28, 732345), (30, 683522), (35, 585876), (42, 488230), (60, 341761), (70, 292938), (84, 244115), (105, 195292), (140, 146469), (210, 97646), (420, 48823)]