1280999745

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{327203}}^1$

素因数の和:327246

約数の個数: 32

約数和(自身を含む): 2355868800

約数和(自身を除く): 1074869055

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 327203, 981609, 1636015, 2944827, 4908045, 8834481, 9488887, 14724135, 28466661, 44172405, 47444435, 85399983, 142333305, 256199949, 426999915, 1280999745]

約数ペア:

[(1, 1280999745), (3, 426999915), (5, 256199949), (9, 142333305), (15, 85399983), (27, 47444435), (29, 44172405), (45, 28466661), (87, 14724135), (135, 9488887), (145, 8834481), (261, 4908045), (435, 2944827), (783, 1636015), (1305, 981609), (3915, 327203)]