20789728210

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{449}}^1\times {\mathrm{33311}}^1$

素因数の和:33906

約数の個数: 32

約数和(自身を含む): 37775808000

約数和(自身を除く): 16986079790

約数列:

[1, 2, 5, 10, 139, 278, 449, 695, 898, 1390, 2245, 4490, 33311, 62411, 66622, 124822, 166555, 312055, 333110, 624110, 4630229, 9260458, 14956639, 23151145, 29913278, 46302290, 74783195, 149566390, 2078972821, 4157945642, 10394864105, 20789728210]

約数ペア:

[(1, 20789728210), (2, 10394864105), (5, 4157945642), (10, 2078972821), (139, 149566390), (278, 74783195), (449, 46302290), (695, 29913278), (898, 23151145), (1390, 14956639), (2245, 9260458), (4490, 4630229), (33311, 624110), (62411, 333110), (66622, 312055), (124822, 166555)]