19687850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4327}}^1$

素因数の和:4359

約数の個数: 48

約数和(自身を含む): 45080448

約数和(自身を除く): 25392598

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4327, 4550, 8654, 21635, 30289, 43270, 56251, 60578, 108175, 112502, 151445, 216350, 281255, 302890, 393757, 562510, 757225, 787514, 1406275, 1514450, 1968785, 2812550, 3937570, 9843925, 19687850]

約数ペア:

[(1, 19687850), (2, 9843925), (5, 3937570), (7, 2812550), (10, 1968785), (13, 1514450), (14, 1406275), (25, 787514), (26, 757225), (35, 562510), (50, 393757), (65, 302890), (70, 281255), (91, 216350), (130, 151445), (175, 112502), (182, 108175), (325, 60578), (350, 56251), (455, 43270), (650, 30289), (910, 21635), (2275, 8654), (4327, 4550)]