20024375

素因数分解:

$5^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:249

約数の個数: 40

約数和(自身を含む): 29990400

約数和(自身を除く): 9966025

約数列:

[1, 5, 7, 23, 25, 35, 115, 125, 161, 175, 199, 575, 625, 805, 875, 995, 1393, 2875, 4025, 4375, 4577, 4975, 6965, 14375, 20125, 22885, 24875, 32039, 34825, 100625, 114425, 124375, 160195, 174125, 572125, 800975, 870625, 2860625, 4004875, 20024375]

約数ペア:

[(1, 20024375), (5, 4004875), (7, 2860625), (23, 870625), (25, 800975), (35, 572125), (115, 174125), (125, 160195), (161, 124375), (175, 114425), (199, 100625), (575, 34825), (625, 32039), (805, 24875), (875, 22885), (995, 20125), (1393, 14375), (2875, 6965), (4025, 4975), (4375, 4577)]