81842625

素因数分解:

$3^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{3163}}^1$

素因数の和:3207

約数の個数: 48

約数和(自身を含む): 153998208

約数和(自身を除く): 72155583

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 125, 207, 225, 345, 375, 575, 1035, 1125, 1725, 2875, 3163, 5175, 8625, 9489, 15815, 25875, 28467, 47445, 72749, 79075, 142335, 218247, 237225, 363745, 395375, 654741, 711675, 1091235, 1186125, 1818725, 3273705, 3558375, 5456175, 9093625, 16368525, 27280875, 81842625]

約数ペア:

[(1, 81842625), (3, 27280875), (5, 16368525), (9, 9093625), (15, 5456175), (23, 3558375), (25, 3273705), (45, 1818725), (69, 1186125), (75, 1091235), (115, 711675), (125, 654741), (207, 395375), (225, 363745), (345, 237225), (375, 218247), (575, 142335), (1035, 79075), (1125, 72749), (1725, 47445), (2875, 28467), (3163, 25875), (5175, 15815), (8625, 9489)]