15868125

素因数分解:

$3^2\times 5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:77

約数の個数: 120

約数和(自身を含む): 36388352

約数和(自身を除く): 20520227

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 31, 35, 39, 45, 63, 65, 75, 91, 93, 105, 117, 125, 155, 175, 195, 217, 225, 273, 279, 315, 325, 375, 403, 455, 465, 525, 585, 625, 651, 775, 819, 875, 975, 1085, 1125, 1209, 1365, 1395, 1575, 1625, 1875, 1953, 2015, 2275, 2325, 2625, 2821, 2925, 3255, 3627, 3875, 4095, 4375, 4875, 5425, 5625, 6045, 6825, 6975, 7875, 8125, 8463, 9765, 10075, 11375, 11625, 13125, 14105, 14625, 16275, 18135, 19375, 20475, 24375, 25389, 27125, 30225, 34125, 34875, 39375, 42315, 48825, 50375, 56875, 58125, 70525, 73125, 81375, 90675, 102375, 126945, 135625, 151125, 170625, 174375, 211575, 244125, 251875, 352625, 406875, 453375, 511875, 634725, 755625, 1057875, 1220625, 1763125, 2266875, 3173625, 5289375, 15868125]

約数ペア:

[(1, 15868125), (3, 5289375), (5, 3173625), (7, 2266875), (9, 1763125), (13, 1220625), (15, 1057875), (21, 755625), (25, 634725), (31, 511875), (35, 453375), (39, 406875), (45, 352625), (63, 251875), (65, 244125), (75, 211575), (91, 174375), (93, 170625), (105, 151125), (117, 135625), (125, 126945), (155, 102375), (175, 90675), (195, 81375), (217, 73125), (225, 70525), (273, 58125), (279, 56875), (315, 50375), (325, 48825), (375, 42315), (403, 39375), (455, 34875), (465, 34125), (525, 30225), (585, 27125), (625, 25389), (651, 24375), (775, 20475), (819, 19375), (875, 18135), (975, 16275), (1085, 14625), (1125, 14105), (1209, 13125), (1365, 11625), (1395, 11375), (1575, 10075), (1625, 9765), (1875, 8463), (1953, 8125), (2015, 7875), (2275, 6975), (2325, 6825), (2625, 6045), (2821, 5625), (2925, 5425), (3255, 4875), (3627, 4375), (3875, 4095)]