18128025

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:183

約数の個数: 72

約数和(自身を含む): 35283456

約数和(自身を除く): 17155431

約数列:

[1, 3, 5, 9, 15, 23, 25, 31, 45, 69, 75, 93, 113, 115, 155, 207, 225, 279, 339, 345, 465, 565, 575, 713, 775, 1017, 1035, 1395, 1695, 1725, 2139, 2325, 2599, 2825, 3503, 3565, 5085, 5175, 6417, 6975, 7797, 8475, 10509, 10695, 12995, 17515, 17825, 23391, 25425, 31527, 32085, 38985, 52545, 53475, 64975, 80569, 87575, 116955, 157635, 160425, 194925, 241707, 262725, 402845, 584775, 725121, 788175, 1208535, 2014225, 3625605, 6042675, 18128025]

約数ペア:

[(1, 18128025), (3, 6042675), (5, 3625605), (9, 2014225), (15, 1208535), (23, 788175), (25, 725121), (31, 584775), (45, 402845), (69, 262725), (75, 241707), (93, 194925), (113, 160425), (115, 157635), (155, 116955), (207, 87575), (225, 80569), (279, 64975), (339, 53475), (345, 52545), (465, 38985), (565, 32085), (575, 31527), (713, 25425), (775, 23391), (1017, 17825), (1035, 17515), (1395, 12995), (1695, 10695), (1725, 10509), (2139, 8475), (2325, 7797), (2599, 6975), (2825, 6417), (3503, 5175), (3565, 5085)]