68800040

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{6121}}^1$

素因数の和:6413

約数の個数: 32

約数和(自身を含む): 155376360

約数和(自身を除く): 86576320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2810, 5620, 6121, 11240, 12242, 24484, 30605, 48968, 61210, 122420, 244840, 1720001, 3440002, 6880004, 8600005, 13760008, 17200010, 34400020, 68800040]

約数ペア:

[(1, 68800040), (2, 34400020), (4, 17200010), (5, 13760008), (8, 8600005), (10, 6880004), (20, 3440002), (40, 1720001), (281, 244840), (562, 122420), (1124, 61210), (1405, 48968), (2248, 30605), (2810, 24484), (5620, 12242), (6121, 11240)]