209214325

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{1259}}^1$

素因数の和:1326

約数の個数: 36

約数和(自身を含む): 287794080

約数和(自身を除く): 78579755

約数列:

[1, 5, 17, 23, 25, 85, 115, 289, 391, 425, 575, 1259, 1445, 1955, 6295, 6647, 7225, 9775, 21403, 28957, 31475, 33235, 107015, 144785, 166175, 363851, 492269, 535075, 723925, 1819255, 2461345, 8368573, 9096275, 12306725, 41842865, 209214325]

約数ペア:

[(1, 209214325), (5, 41842865), (17, 12306725), (23, 9096275), (25, 8368573), (85, 2461345), (115, 1819255), (289, 723925), (391, 535075), (425, 492269), (575, 363851), (1259, 166175), (1445, 144785), (1955, 107015), (6295, 33235), (6647, 31475), (7225, 28957), (9775, 21403)]