138724640

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{6827}}^1$

素因数の和:6969

約数の個数: 48

約数和(自身を含む): 330365952

約数和(自身を除く): 191641312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 6827, 10160, 13654, 20320, 27308, 34135, 54616, 68270, 109232, 136540, 218464, 273080, 546160, 867029, 1092320, 1734058, 3468116, 4335145, 6936232, 8670290, 13872464, 17340580, 27744928, 34681160, 69362320, 138724640]

約数ペア:

[(1, 138724640), (2, 69362320), (4, 34681160), (5, 27744928), (8, 17340580), (10, 13872464), (16, 8670290), (20, 6936232), (32, 4335145), (40, 3468116), (80, 1734058), (127, 1092320), (160, 867029), (254, 546160), (508, 273080), (635, 218464), (1016, 136540), (1270, 109232), (2032, 68270), (2540, 54616), (4064, 34135), (5080, 27308), (6827, 20320), (10160, 13654)]