15690978640

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4561331}}^1$

素因数の和:4561387

約数の個数: 40

約数和(自身を含む): 37329941088

約数和(自身を除く): 21638962448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 4561331, 9122662, 18245324, 22806655, 36490648, 45613310, 72981296, 91226620, 182453240, 196137233, 364906480, 392274466, 784548932, 980686165, 1569097864, 1961372330, 3138195728, 3922744660, 7845489320, 15690978640]

約数ペア:

[(1, 15690978640), (2, 7845489320), (4, 3922744660), (5, 3138195728), (8, 1961372330), (10, 1569097864), (16, 980686165), (20, 784548932), (40, 392274466), (43, 364906480), (80, 196137233), (86, 182453240), (172, 91226620), (215, 72981296), (344, 45613310), (430, 36490648), (688, 22806655), (860, 18245324), (1720, 9122662), (3440, 4561331)]