20518720

素因数分解:

$2^6\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1733}}^1$

素因数の和:1787

約数の個数: 56

約数和(自身を含む): 50209704

約数和(自身を除く): 29690984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 148, 160, 185, 296, 320, 370, 592, 740, 1184, 1480, 1733, 2368, 2960, 3466, 5920, 6932, 8665, 11840, 13864, 17330, 27728, 34660, 55456, 64121, 69320, 110912, 128242, 138640, 256484, 277280, 320605, 512968, 554560, 641210, 1025936, 1282420, 2051872, 2564840, 4103744, 5129680, 10259360, 20518720]

約数ペア:

[(1, 20518720), (2, 10259360), (4, 5129680), (5, 4103744), (8, 2564840), (10, 2051872), (16, 1282420), (20, 1025936), (32, 641210), (37, 554560), (40, 512968), (64, 320605), (74, 277280), (80, 256484), (148, 138640), (160, 128242), (185, 110912), (296, 69320), (320, 64121), (370, 55456), (592, 34660), (740, 27728), (1184, 17330), (1480, 13864), (1733, 11840), (2368, 8665), (2960, 6932), (3466, 5920)]