31331175

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{443}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 55496448

約数和(自身を除く): 24165273

約数列:

[1, 3, 5, 15, 23, 25, 41, 69, 75, 115, 123, 205, 345, 443, 575, 615, 943, 1025, 1329, 1725, 2215, 2829, 3075, 4715, 6645, 10189, 11075, 14145, 18163, 23575, 30567, 33225, 50945, 54489, 70725, 90815, 152835, 254725, 272445, 417749, 454075, 764175, 1253247, 1362225, 2088745, 6266235, 10443725, 31331175]

約数ペア:

[(1, 31331175), (3, 10443725), (5, 6266235), (15, 2088745), (23, 1362225), (25, 1253247), (41, 764175), (69, 454075), (75, 417749), (115, 272445), (123, 254725), (205, 152835), (345, 90815), (443, 70725), (575, 54489), (615, 50945), (943, 33225), (1025, 30567), (1329, 23575), (1725, 18163), (2215, 14145), (2829, 11075), (3075, 10189), (4715, 6645)]