81148125

素因数分解:

$3^1\times 5^4\times {\mathrm{113}}^1\times {\mathrm{383}}^1$

素因数の和:519

約数の個数: 40

約数和(自身を含む): 136756224

約数和(自身を除く): 55608099

約数列:

[1, 3, 5, 15, 25, 75, 113, 125, 339, 375, 383, 565, 625, 1149, 1695, 1875, 1915, 2825, 5745, 8475, 9575, 14125, 28725, 42375, 43279, 47875, 70625, 129837, 143625, 211875, 216395, 239375, 649185, 718125, 1081975, 3245925, 5409875, 16229625, 27049375, 81148125]

約数ペア:

[(1, 81148125), (3, 27049375), (5, 16229625), (15, 5409875), (25, 3245925), (75, 1081975), (113, 718125), (125, 649185), (339, 239375), (375, 216395), (383, 211875), (565, 143625), (625, 129837), (1149, 70625), (1695, 47875), (1875, 43279), (1915, 42375), (2825, 28725), (5745, 14125), (8475, 9575)]