28311075

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9679}}^1$

素因数の和:9708

約数の個数: 36

約数和(自身を含む): 54614560

約数和(自身を除く): 26303485

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 9679, 29037, 48395, 87111, 125827, 145185, 241975, 377481, 435555, 629135, 725925, 1132443, 1887405, 2177775, 3145675, 5662215, 9437025, 28311075]

約数ペア:

[(1, 28311075), (3, 9437025), (5, 5662215), (9, 3145675), (13, 2177775), (15, 1887405), (25, 1132443), (39, 725925), (45, 629135), (65, 435555), (75, 377481), (117, 241975), (195, 145185), (225, 125827), (325, 87111), (585, 48395), (975, 29037), (2925, 9679)]