620642540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{9103}}^1$

素因数の和:9606

約数の個数: 48

約数和(自身を含む): 1492764672

約数和(自身を除く): 872122132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 487, 974, 1948, 2435, 3409, 4870, 6818, 9103, 9740, 13636, 17045, 18206, 34090, 36412, 45515, 63721, 68180, 91030, 127442, 182060, 254884, 318605, 637210, 1274420, 4433161, 8866322, 17732644, 22165805, 31032127, 44331610, 62064254, 88663220, 124128508, 155160635, 310321270, 620642540]

約数ペア:

[(1, 620642540), (2, 310321270), (4, 155160635), (5, 124128508), (7, 88663220), (10, 62064254), (14, 44331610), (20, 31032127), (28, 22165805), (35, 17732644), (70, 8866322), (140, 4433161), (487, 1274420), (974, 637210), (1948, 318605), (2435, 254884), (3409, 182060), (4870, 127442), (6818, 91030), (9103, 68180), (9740, 63721), (13636, 45515), (17045, 36412), (18206, 34090)]