25002005

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 37920960

約数和(自身を除く): 12918955

約数列:

[1, 5, 7, 19, 35, 41, 49, 95, 131, 133, 205, 245, 287, 655, 665, 779, 917, 931, 1435, 2009, 2489, 3895, 4585, 4655, 5371, 5453, 6419, 10045, 12445, 17423, 26855, 27265, 32095, 37597, 38171, 87115, 102049, 121961, 187985, 190855, 263179, 510245, 609805, 714343, 1315895, 3571715, 5000401, 25002005]

約数ペア:

[(1, 25002005), (5, 5000401), (7, 3571715), (19, 1315895), (35, 714343), (41, 609805), (49, 510245), (95, 263179), (131, 190855), (133, 187985), (205, 121961), (245, 102049), (287, 87115), (655, 38171), (665, 37597), (779, 32095), (917, 27265), (931, 26855), (1435, 17423), (2009, 12445), (2489, 10045), (3895, 6419), (4585, 5453), (4655, 5371)]