20901500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{2459}}^1$

素因数の和:2495

約数の個数: 48

約数和(自身を含む): 48353760

約数和(自身を除く): 27452260

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 170, 250, 340, 425, 500, 850, 1700, 2125, 2459, 4250, 4918, 8500, 9836, 12295, 24590, 41803, 49180, 61475, 83606, 122950, 167212, 209015, 245900, 307375, 418030, 614750, 836060, 1045075, 1229500, 2090150, 4180300, 5225375, 10450750, 20901500]

約数ペア:

[(1, 20901500), (2, 10450750), (4, 5225375), (5, 4180300), (10, 2090150), (17, 1229500), (20, 1045075), (25, 836060), (34, 614750), (50, 418030), (68, 307375), (85, 245900), (100, 209015), (125, 167212), (170, 122950), (250, 83606), (340, 61475), (425, 49180), (500, 41803), (850, 24590), (1700, 12295), (2125, 9836), (2459, 8500), (4250, 4918)]