18282500

素因数分解:

$2^2\times 5^4\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:198

約数の個数: 60

約数和(自身を含む): 40936896

約数和(自身を除く): 22654396

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 103, 125, 142, 206, 250, 284, 355, 412, 500, 515, 625, 710, 1030, 1250, 1420, 1775, 2060, 2500, 2575, 3550, 5150, 7100, 7313, 8875, 10300, 12875, 14626, 17750, 25750, 29252, 35500, 36565, 44375, 51500, 64375, 73130, 88750, 128750, 146260, 177500, 182825, 257500, 365650, 731300, 914125, 1828250, 3656500, 4570625, 9141250, 18282500]

約数ペア:

[(1, 18282500), (2, 9141250), (4, 4570625), (5, 3656500), (10, 1828250), (20, 914125), (25, 731300), (50, 365650), (71, 257500), (100, 182825), (103, 177500), (125, 146260), (142, 128750), (206, 88750), (250, 73130), (284, 64375), (355, 51500), (412, 44375), (500, 36565), (515, 35500), (625, 29252), (710, 25750), (1030, 17750), (1250, 14626), (1420, 12875), (1775, 10300), (2060, 8875), (2500, 7313), (2575, 7100), (3550, 5150)]