1985620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1091}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 5136768

約数和(自身を除く): 3151148

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1091, 1820, 2182, 4364, 5455, 7637, 10910, 14183, 15274, 21820, 28366, 30548, 38185, 56732, 70915, 76370, 99281, 141830, 152740, 198562, 283660, 397124, 496405, 992810, 1985620]

約数ペア:

[(1, 1985620), (2, 992810), (4, 496405), (5, 397124), (7, 283660), (10, 198562), (13, 152740), (14, 141830), (20, 99281), (26, 76370), (28, 70915), (35, 56732), (52, 38185), (65, 30548), (70, 28366), (91, 21820), (130, 15274), (140, 14183), (182, 10910), (260, 7637), (364, 5455), (455, 4364), (910, 2182), (1091, 1820)]