64212560

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{19577}}^1$

素因数の和:19631

約数の個数: 40

約数和(自身を含む): 152943336

約数和(自身を除く): 88730776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 19577, 39154, 78308, 97885, 156616, 195770, 313232, 391540, 783080, 802657, 1566160, 1605314, 3210628, 4013285, 6421256, 8026570, 12842512, 16053140, 32106280, 64212560]

約数ペア:

[(1, 64212560), (2, 32106280), (4, 16053140), (5, 12842512), (8, 8026570), (10, 6421256), (16, 4013285), (20, 3210628), (40, 1605314), (41, 1566160), (80, 802657), (82, 783080), (164, 391540), (205, 313232), (328, 195770), (410, 156616), (656, 97885), (820, 78308), (1640, 39154), (3280, 19577)]