12898925

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:150

約数の個数: 36

約数和(自身を含む): 17972064

約数和(自身を除く): 5073139

約数列:

[1, 5, 13, 25, 43, 65, 71, 169, 215, 325, 355, 559, 845, 923, 1075, 1775, 2795, 3053, 4225, 4615, 7267, 11999, 13975, 15265, 23075, 36335, 39689, 59995, 76325, 181675, 198445, 299975, 515957, 992225, 2579785, 12898925]

約数ペア:

[(1, 12898925), (5, 2579785), (13, 992225), (25, 515957), (43, 299975), (65, 198445), (71, 181675), (169, 76325), (215, 59995), (325, 39689), (355, 36335), (559, 23075), (845, 15265), (923, 13975), (1075, 11999), (1775, 7267), (2795, 4615), (3053, 4225)]