214228475

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:392

約数の個数: 36

約数和(自身を含む): 285510000

約数和(自身を除く): 71281525

約数列:

[1, 5, 17, 25, 85, 149, 199, 289, 425, 745, 995, 1445, 2533, 3383, 3725, 4975, 7225, 12665, 16915, 29651, 43061, 57511, 63325, 84575, 148255, 215305, 287555, 504067, 741275, 1076525, 1437775, 2520335, 8569139, 12601675, 42845695, 214228475]

約数ペア:

[(1, 214228475), (5, 42845695), (17, 12601675), (25, 8569139), (85, 2520335), (149, 1437775), (199, 1076525), (289, 741275), (425, 504067), (745, 287555), (995, 215305), (1445, 148255), (2533, 84575), (3383, 63325), (3725, 57511), (4975, 43061), (7225, 29651), (12665, 16915)]