20503140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{48817}}^1$

素因数の和:48836

約数の個数: 48

約数和(自身を含む): 65611392

約数和(自身を除く): 45108252

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, 48817, 97634, 146451, 195268, 244085, 292902, 341719, 488170, 585804, 683438, 732255, 976340, 1025157, 1366876, 1464510, 1708595, 2050314, 2929020, 3417190, 4100628, 5125785, 6834380, 10251570, 20503140]

約数ペア:

[(1, 20503140), (2, 10251570), (3, 6834380), (4, 5125785), (5, 4100628), (6, 3417190), (7, 2929020), (10, 2050314), (12, 1708595), (14, 1464510), (15, 1366876), (20, 1025157), (21, 976340), (28, 732255), (30, 683438), (35, 585804), (42, 488170), (60, 341719), (70, 292902), (84, 244085), (105, 195268), (140, 146451), (210, 97634), (420, 48817)]