85811875

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:197

約数の個数: 40

約数和(自身を含む): 114363392

約数和(自身を除く): 28551517

約数列:

[1, 5, 25, 31, 43, 103, 125, 155, 215, 515, 625, 775, 1075, 1333, 2575, 3193, 3875, 4429, 5375, 6665, 12875, 15965, 19375, 22145, 26875, 33325, 64375, 79825, 110725, 137299, 166625, 399125, 553625, 686495, 833125, 1995625, 2768125, 3432475, 17162375, 85811875]

約数ペア:

[(1, 85811875), (5, 17162375), (25, 3432475), (31, 2768125), (43, 1995625), (103, 833125), (125, 686495), (155, 553625), (215, 399125), (515, 166625), (625, 137299), (775, 110725), (1075, 79825), (1333, 64375), (2575, 33325), (3193, 26875), (3875, 22145), (4429, 19375), (5375, 15965), (6665, 12875)]