60781980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{144719}}^1$

素因数の和:144738

約数の個数: 48

約数和(自身を含む): 194503680

約数和(自身を除く): 133721700

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, 144719, 289438, 434157, 578876, 723595, 868314, 1013033, 1447190, 1736628, 2026066, 2170785, 2894380, 3039099, 4052132, 4341570, 5065165, 6078198, 8683140, 10130330, 12156396, 15195495, 20260660, 30390990, 60781980]

約数ペア:

[(1, 60781980), (2, 30390990), (3, 20260660), (4, 15195495), (5, 12156396), (6, 10130330), (7, 8683140), (10, 6078198), (12, 5065165), (14, 4341570), (15, 4052132), (20, 3039099), (21, 2894380), (28, 2170785), (30, 2026066), (35, 1736628), (42, 1447190), (60, 1013033), (70, 868314), (84, 723595), (105, 578876), (140, 434157), (210, 289438), (420, 144719)]