18270625

素因数分解:

$5^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:115

約数の個数: 40

約数和(自身を含む): 25191936

約数和(自身を除く): 6921311

約数列:

[1, 5, 23, 25, 31, 41, 115, 125, 155, 205, 575, 625, 713, 775, 943, 1025, 1271, 2875, 3565, 3875, 4715, 5125, 6355, 14375, 17825, 19375, 23575, 25625, 29233, 31775, 89125, 117875, 146165, 158875, 445625, 589375, 730825, 794375, 3654125, 18270625]

約数ペア:

[(1, 18270625), (5, 3654125), (23, 794375), (25, 730825), (31, 589375), (41, 445625), (115, 158875), (125, 146165), (155, 117875), (205, 89125), (575, 31775), (625, 29233), (713, 25625), (775, 23575), (943, 19375), (1025, 17825), (1271, 14375), (2875, 6355), (3565, 5125), (3875, 4715)]