258566280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{307817}}^1$

素因数の和:307838

約数の個数: 64

約数和(自身を含む): 886515840

約数和(自身を除く): 627949560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 307817, 615634, 923451, 1231268, 1539085, 1846902, 2154719, 2462536, 3078170, 3693804, 4309438, 4617255, 6156340, 6464157, 7387608, 8618876, 9234510, 10773595, 12312680, 12928314, 17237752, 18469020, 21547190, 25856628, 32320785, 36938040, 43094380, 51713256, 64641570, 86188760, 129283140, 258566280]

約数ペア:

[(1, 258566280), (2, 129283140), (3, 86188760), (4, 64641570), (5, 51713256), (6, 43094380), (7, 36938040), (8, 32320785), (10, 25856628), (12, 21547190), (14, 18469020), (15, 17237752), (20, 12928314), (21, 12312680), (24, 10773595), (28, 9234510), (30, 8618876), (35, 7387608), (40, 6464157), (42, 6156340), (56, 4617255), (60, 4309438), (70, 3693804), (84, 3078170), (105, 2462536), (120, 2154719), (140, 1846902), (168, 1539085), (210, 1231268), (280, 923451), (420, 615634), (840, 307817)]