181431740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{2003}}^1$

素因数の和:2666

約数の個数: 48

約数和(自身を含む): 436326912

約数和(自身を除く): 254895172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 647, 1294, 2003, 2588, 3235, 4006, 4529, 6470, 8012, 9058, 10015, 12940, 14021, 18116, 20030, 22645, 28042, 40060, 45290, 56084, 70105, 90580, 140210, 280420, 1295941, 2591882, 5183764, 6479705, 9071587, 12959410, 18143174, 25918820, 36286348, 45357935, 90715870, 181431740]

約数ペア:

[(1, 181431740), (2, 90715870), (4, 45357935), (5, 36286348), (7, 25918820), (10, 18143174), (14, 12959410), (20, 9071587), (28, 6479705), (35, 5183764), (70, 2591882), (140, 1295941), (647, 280420), (1294, 140210), (2003, 90580), (2588, 70105), (3235, 56084), (4006, 45290), (4529, 40060), (6470, 28042), (8012, 22645), (9058, 20030), (10015, 18116), (12940, 14021)]