20782510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{827}}^1$

素因数の和:1200

約数の個数: 32

約数和(自身を含む): 42923520

約数和(自身を除く): 22141010

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 359, 718, 827, 1654, 1795, 2513, 3590, 4135, 5026, 5789, 8270, 11578, 12565, 25130, 28945, 57890, 296893, 593786, 1484465, 2078251, 2968930, 4156502, 10391255, 20782510]

約数ペア:

[(1, 20782510), (2, 10391255), (5, 4156502), (7, 2968930), (10, 2078251), (14, 1484465), (35, 593786), (70, 296893), (359, 57890), (718, 28945), (827, 25130), (1654, 12565), (1795, 11578), (2513, 8270), (3590, 5789), (4135, 5026)]