899702975

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 1185861600

約数和(自身を除く): 286158625

約数列:

[1, 5, 25, 41, 43, 137, 149, 205, 215, 685, 745, 1025, 1075, 1763, 3425, 3725, 5617, 5891, 6109, 6407, 8815, 20413, 28085, 29455, 30545, 32035, 44075, 102065, 140425, 147275, 152725, 160175, 241531, 262687, 510325, 836933, 877759, 1207655, 1313435, 4184665, 4388795, 6038275, 6567175, 20923325, 21943975, 35988119, 179940595, 899702975]

約数ペア:

[(1, 899702975), (5, 179940595), (25, 35988119), (41, 21943975), (43, 20923325), (137, 6567175), (149, 6038275), (205, 4388795), (215, 4184665), (685, 1313435), (745, 1207655), (1025, 877759), (1075, 836933), (1763, 510325), (3425, 262687), (3725, 241531), (5617, 160175), (5891, 152725), (6109, 147275), (6407, 140425), (8815, 102065), (20413, 44075), (28085, 32035), (29455, 30545)]