19987750

素因数分解:

$2^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{4703}}^1$

素因数の和:4737

約数の個数: 32

約数和(自身を含む): 39626496

約数和(自身を除く): 19638746

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 125, 170, 250, 425, 850, 2125, 4250, 4703, 9406, 23515, 47030, 79951, 117575, 159902, 235150, 399755, 587875, 799510, 1175750, 1998775, 3997550, 9993875, 19987750]

約数ペア:

[(1, 19987750), (2, 9993875), (5, 3997550), (10, 1998775), (17, 1175750), (25, 799510), (34, 587875), (50, 399755), (85, 235150), (125, 159902), (170, 117575), (250, 79951), (425, 47030), (850, 23515), (2125, 9406), (4250, 4703)]