64521940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{460871}}^1$

素因数の和:460887

約数の個数: 24

約数和(自身を含む): 154852992

約数和(自身を除く): 90331052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 460871, 921742, 1843484, 2304355, 3226097, 4608710, 6452194, 9217420, 12904388, 16130485, 32260970, 64521940]

約数ペア:

[(1, 64521940), (2, 32260970), (4, 16130485), (5, 12904388), (7, 9217420), (10, 6452194), (14, 4608710), (20, 3226097), (28, 2304355), (35, 1843484), (70, 921742), (140, 460871)]