149739280

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{6661}}^1$

素因数の和:6955

約数の個数: 40

約数和(自身を含む): 349435224

約数和(自身を除く): 199695944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 562, 1124, 1405, 2248, 2810, 4496, 5620, 6661, 11240, 13322, 22480, 26644, 33305, 53288, 66610, 106576, 133220, 266440, 532880, 1871741, 3743482, 7486964, 9358705, 14973928, 18717410, 29947856, 37434820, 74869640, 149739280]

約数ペア:

[(1, 149739280), (2, 74869640), (4, 37434820), (5, 29947856), (8, 18717410), (10, 14973928), (16, 9358705), (20, 7486964), (40, 3743482), (80, 1871741), (281, 532880), (562, 266440), (1124, 133220), (1405, 106576), (2248, 66610), (2810, 53288), (4496, 33305), (5620, 26644), (6661, 22480), (11240, 13322)]