20285625

素因数分解:

$3^1\times 5^4\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:403

約数の個数: 40

約数和(自身を含む): 34988800

約数和(自身を除く): 14703175

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 125, 155, 349, 375, 465, 625, 775, 1047, 1745, 1875, 2325, 3875, 5235, 8725, 10819, 11625, 19375, 26175, 32457, 43625, 54095, 58125, 130875, 162285, 218125, 270475, 654375, 811425, 1352375, 4057125, 6761875, 20285625]

約数ペア:

[(1, 20285625), (3, 6761875), (5, 4057125), (15, 1352375), (25, 811425), (31, 654375), (75, 270475), (93, 218125), (125, 162285), (155, 130875), (349, 58125), (375, 54095), (465, 43625), (625, 32457), (775, 26175), (1047, 19375), (1745, 11625), (1875, 10819), (2325, 8725), (3875, 5235)]