18369375

素因数分解:

$3^1\times 5^4\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:221

約数の個数: 40

約数和(自身を含む): 31227504

約数和(自身を除く): 12858129

約数列:

[1, 3, 5, 15, 25, 75, 97, 101, 125, 291, 303, 375, 485, 505, 625, 1455, 1515, 1875, 2425, 2525, 7275, 7575, 9797, 12125, 12625, 29391, 36375, 37875, 48985, 60625, 63125, 146955, 181875, 189375, 244925, 734775, 1224625, 3673875, 6123125, 18369375]

約数ペア:

[(1, 18369375), (3, 6123125), (5, 3673875), (15, 1224625), (25, 734775), (75, 244925), (97, 189375), (101, 181875), (125, 146955), (291, 63125), (303, 60625), (375, 48985), (485, 37875), (505, 36375), (625, 29391), (1455, 12625), (1515, 12125), (1875, 9797), (2425, 7575), (2525, 7275)]