18506375

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:236

約数の個数: 32

約数和(自身を含む): 24845184

約数和(自身を除く): 6338809

約数列:

[1, 5, 23, 25, 41, 115, 125, 157, 205, 575, 785, 943, 1025, 2875, 3611, 3925, 4715, 5125, 6437, 18055, 19625, 23575, 32185, 90275, 117875, 148051, 160925, 451375, 740255, 804625, 3701275, 18506375]

約数ペア:

[(1, 18506375), (5, 3701275), (23, 804625), (25, 740255), (41, 451375), (115, 160925), (125, 148051), (157, 117875), (205, 90275), (575, 32185), (785, 23575), (943, 19625), (1025, 18055), (2875, 6437), (3611, 5125), (3925, 4715)]