80543125

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:487

約数の個数: 40

約数和(自身を含む): 113363712

約数和(自身を除く): 32820587

約数列:

[1, 5, 13, 23, 25, 65, 115, 125, 299, 325, 431, 575, 625, 1495, 1625, 2155, 2875, 5603, 7475, 8125, 9913, 10775, 14375, 28015, 37375, 49565, 53875, 128869, 140075, 186875, 247825, 269375, 644345, 700375, 1239125, 3221725, 3501875, 6195625, 16108625, 80543125]

約数ペア:

[(1, 80543125), (5, 16108625), (13, 6195625), (23, 3501875), (25, 3221725), (65, 1239125), (115, 700375), (125, 644345), (299, 269375), (325, 247825), (431, 186875), (575, 140075), (625, 128869), (1495, 53875), (1625, 49565), (2155, 37375), (2875, 28015), (5603, 14375), (7475, 10775), (8125, 9913)]