20812750

素因数分解:

$2^1\times 5^3\times 7^2\times {\mathrm{1699}}^1$

素因数の和:1730

約数の個数: 48

約数和(自身を含む): 45349200

約数和(自身を除く): 24536450

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 125, 175, 245, 250, 350, 490, 875, 1225, 1699, 1750, 2450, 3398, 6125, 8495, 11893, 12250, 16990, 23786, 42475, 59465, 83251, 84950, 118930, 166502, 212375, 297325, 416255, 424750, 594650, 832510, 1486625, 2081275, 2973250, 4162550, 10406375, 20812750]

約数ペア:

[(1, 20812750), (2, 10406375), (5, 4162550), (7, 2973250), (10, 2081275), (14, 1486625), (25, 832510), (35, 594650), (49, 424750), (50, 416255), (70, 297325), (98, 212375), (125, 166502), (175, 118930), (245, 84950), (250, 83251), (350, 59465), (490, 42475), (875, 23786), (1225, 16990), (1699, 12250), (1750, 11893), (2450, 8495), (3398, 6125)]