638930012

素因数分解:

$2^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{31649}}^1$

素因数の和:31770

約数の個数: 36

約数和(自身を含む): 1313348400

約数和(自身を除く): 674418388

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 103, 196, 206, 412, 721, 1442, 2884, 5047, 10094, 20188, 31649, 63298, 126596, 221543, 443086, 886172, 1550801, 3101602, 3259847, 6203204, 6519694, 13039388, 22818929, 45637858, 91275716, 159732503, 319465006, 638930012]

約数ペア:

[(1, 638930012), (2, 319465006), (4, 159732503), (7, 91275716), (14, 45637858), (28, 22818929), (49, 13039388), (98, 6519694), (103, 6203204), (196, 3259847), (206, 3101602), (412, 1550801), (721, 886172), (1442, 443086), (2884, 221543), (5047, 126596), (10094, 63298), (20188, 31649)]