290420925

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{90053}}^1$

素因数の和:90109

約数の個数: 24

約数和(自身を含む): 491334624

約数和(自身を除く): 200913699

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 90053, 270159, 450265, 1350795, 2251325, 3872279, 6753975, 11616837, 19361395, 58084185, 96806975, 290420925]

約数ペア:

[(1, 290420925), (3, 96806975), (5, 58084185), (15, 19361395), (25, 11616837), (43, 6753975), (75, 3872279), (129, 2251325), (215, 1350795), (645, 450265), (1075, 270159), (3225, 90053)]