91021980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{216719}}^1$

素因数の和:216738

約数の個数: 48

約数和(自身を含む): 291271680

約数和(自身を除く): 200249700

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, 216719, 433438, 650157, 866876, 1083595, 1300314, 1517033, 2167190, 2600628, 3034066, 3250785, 4334380, 4551099, 6068132, 6501570, 7585165, 9102198, 13003140, 15170330, 18204396, 22755495, 30340660, 45510990, 91021980]

約数ペア:

[(1, 91021980), (2, 45510990), (3, 30340660), (4, 22755495), (5, 18204396), (6, 15170330), (7, 13003140), (10, 9102198), (12, 7585165), (14, 6501570), (15, 6068132), (20, 4551099), (21, 4334380), (28, 3250785), (30, 3034066), (35, 2600628), (42, 2167190), (60, 1517033), (70, 1300314), (84, 1083595), (105, 866876), (140, 650157), (210, 433438), (420, 216719)]