18518625

素因数分解:

$3^4\times 5^3\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:117

約数の個数: 80

約数和(自身を含む): 36241920

約数和(自身を除く): 17723295

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 59, 75, 81, 93, 125, 135, 155, 177, 225, 279, 295, 375, 405, 465, 531, 675, 775, 837, 885, 1125, 1395, 1475, 1593, 1829, 2025, 2325, 2511, 2655, 3375, 3875, 4185, 4425, 4779, 5487, 6975, 7375, 7965, 9145, 10125, 11625, 12555, 13275, 16461, 20925, 22125, 23895, 27435, 34875, 39825, 45725, 49383, 62775, 66375, 82305, 104625, 119475, 137175, 148149, 199125, 228625, 246915, 313875, 411525, 597375, 685875, 740745, 1234575, 2057625, 3703725, 6172875, 18518625]

約数ペア:

[(1, 18518625), (3, 6172875), (5, 3703725), (9, 2057625), (15, 1234575), (25, 740745), (27, 685875), (31, 597375), (45, 411525), (59, 313875), (75, 246915), (81, 228625), (93, 199125), (125, 148149), (135, 137175), (155, 119475), (177, 104625), (225, 82305), (279, 66375), (295, 62775), (375, 49383), (405, 45725), (465, 39825), (531, 34875), (675, 27435), (775, 23895), (837, 22125), (885, 20925), (1125, 16461), (1395, 13275), (1475, 12555), (1593, 11625), (1829, 10125), (2025, 9145), (2325, 7965), (2511, 7375), (2655, 6975), (3375, 5487), (3875, 4779), (4185, 4425)]