255609820

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{97561}}^1$

素因数の和:97701

約数の個数: 24

約数和(自身を含む): 540883728

約数和(自身を除く): 285273908

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 97561, 195122, 390244, 487805, 975610, 1951220, 12780491, 25560982, 51121964, 63902455, 127804910, 255609820]

約数ペア:

[(1, 255609820), (2, 127804910), (4, 63902455), (5, 51121964), (10, 25560982), (20, 12780491), (131, 1951220), (262, 975610), (524, 487805), (655, 390244), (1310, 195122), (2620, 97561)]