15575625

素因数分解:

$3^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:113

約数の個数: 80

約数和(自身を含む): 31489920

約数和(自身を除く): 15914295

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 71, 75, 117, 125, 135, 195, 213, 225, 325, 351, 355, 375, 585, 625, 639, 675, 923, 975, 1065, 1125, 1625, 1755, 1775, 1875, 1917, 2769, 2925, 3195, 3375, 4615, 4875, 5325, 5625, 8125, 8307, 8775, 8875, 9585, 13845, 14625, 15975, 16875, 23075, 24375, 24921, 26625, 41535, 43875, 44375, 47925, 69225, 73125, 79875, 115375, 124605, 133125, 207675, 219375, 239625, 346125, 399375, 576875, 623025, 1038375, 1198125, 1730625, 3115125, 5191875, 15575625]

約数ペア:

[(1, 15575625), (3, 5191875), (5, 3115125), (9, 1730625), (13, 1198125), (15, 1038375), (25, 623025), (27, 576875), (39, 399375), (45, 346125), (65, 239625), (71, 219375), (75, 207675), (117, 133125), (125, 124605), (135, 115375), (195, 79875), (213, 73125), (225, 69225), (325, 47925), (351, 44375), (355, 43875), (375, 41535), (585, 26625), (625, 24921), (639, 24375), (675, 23075), (923, 16875), (975, 15975), (1065, 14625), (1125, 13845), (1625, 9585), (1755, 8875), (1775, 8775), (1875, 8307), (1917, 8125), (2769, 5625), (2925, 5325), (3195, 4875), (3375, 4615)]