18377125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:334

約数の個数: 32

約数和(自身を含む): 25369344

約数和(自身を除く): 6992219

約数列:

[1, 5, 13, 25, 43, 65, 125, 215, 263, 325, 559, 1075, 1315, 1625, 2795, 3419, 5375, 6575, 11309, 13975, 17095, 32875, 56545, 69875, 85475, 147017, 282725, 427375, 735085, 1413625, 3675425, 18377125]

約数ペア:

[(1, 18377125), (5, 3675425), (13, 1413625), (25, 735085), (43, 427375), (65, 282725), (125, 147017), (215, 85475), (263, 69875), (325, 56545), (559, 32875), (1075, 17095), (1315, 13975), (1625, 11309), (2795, 6575), (3419, 5375)]