20751570

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{32939}}^1$

素因数の和:32959

約数の個数: 48

約数和(自身を含む): 61663680

約数和(自身を除く): 40912110

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 32939, 65878, 98817, 164695, 197634, 230573, 296451, 329390, 461146, 494085, 592902, 691719, 988170, 1152865, 1383438, 1482255, 2075157, 2305730, 2964510, 3458595, 4150314, 6917190, 10375785, 20751570]

約数ペア:

[(1, 20751570), (2, 10375785), (3, 6917190), (5, 4150314), (6, 3458595), (7, 2964510), (9, 2305730), (10, 2075157), (14, 1482255), (15, 1383438), (18, 1152865), (21, 988170), (30, 691719), (35, 592902), (42, 494085), (45, 461146), (63, 329390), (70, 296451), (90, 230573), (105, 197634), (126, 164695), (210, 98817), (315, 65878), (630, 32939)]