2021500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{311}}^1$

素因数の和:343

約数の個数: 48

約数和(自身を含む): 4769856

約数和(自身を除く): 2748356

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 311, 325, 500, 622, 650, 1244, 1300, 1555, 1625, 3110, 3250, 4043, 6220, 6500, 7775, 8086, 15550, 16172, 20215, 31100, 38875, 40430, 77750, 80860, 101075, 155500, 202150, 404300, 505375, 1010750, 2021500]

約数ペア:

[(1, 2021500), (2, 1010750), (4, 505375), (5, 404300), (10, 202150), (13, 155500), (20, 101075), (25, 80860), (26, 77750), (50, 40430), (52, 38875), (65, 31100), (100, 20215), (125, 16172), (130, 15550), (250, 8086), (260, 7775), (311, 6500), (325, 6220), (500, 4043), (622, 3250), (650, 3110), (1244, 1625), (1300, 1555)]