255718125

素因数分解:

$3^2\times 5^4\times {\mathrm{13}}^2\times {\mathrm{269}}^1$

素因数の和:321

約数の個数: 90

約数和(自身を含む): 501659730

約数和(自身を除く): 245941605

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 125, 169, 195, 225, 269, 325, 375, 507, 585, 625, 807, 845, 975, 1125, 1345, 1521, 1625, 1875, 2421, 2535, 2925, 3497, 4035, 4225, 4875, 5625, 6725, 7605, 8125, 10491, 12105, 12675, 14625, 17485, 20175, 21125, 24375, 31473, 33625, 38025, 45461, 52455, 60525, 63375, 73125, 87425, 100875, 105625, 136383, 157365, 168125, 190125, 227305, 262275, 302625, 316875, 409149, 437125, 504375, 681915, 786825, 950625, 1136525, 1311375, 1513125, 2045745, 2185625, 3409575, 3934125, 5682625, 6556875, 10228725, 17047875, 19670625, 28413125, 51143625, 85239375, 255718125]

約数ペア:

[(1, 255718125), (3, 85239375), (5, 51143625), (9, 28413125), (13, 19670625), (15, 17047875), (25, 10228725), (39, 6556875), (45, 5682625), (65, 3934125), (75, 3409575), (117, 2185625), (125, 2045745), (169, 1513125), (195, 1311375), (225, 1136525), (269, 950625), (325, 786825), (375, 681915), (507, 504375), (585, 437125), (625, 409149), (807, 316875), (845, 302625), (975, 262275), (1125, 227305), (1345, 190125), (1521, 168125), (1625, 157365), (1875, 136383), (2421, 105625), (2535, 100875), (2925, 87425), (3497, 73125), (4035, 63375), (4225, 60525), (4875, 52455), (5625, 45461), (6725, 38025), (7605, 33625), (8125, 31473), (10491, 24375), (12105, 21125), (12675, 20175), (14625, 17485)]