64016440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22541}}^1$

素因数の和:22623

約数の個数: 32

約数和(自身を含む): 146072160

約数和(自身を除く): 82055720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 22541, 45082, 90164, 112705, 180328, 225410, 450820, 901640, 1600411, 3200822, 6401644, 8002055, 12803288, 16004110, 32008220, 64016440]

約数ペア:

[(1, 64016440), (2, 32008220), (4, 16004110), (5, 12803288), (8, 8002055), (10, 6401644), (20, 3200822), (40, 1600411), (71, 901640), (142, 450820), (284, 225410), (355, 180328), (568, 112705), (710, 90164), (1420, 45082), (2840, 22541)]