64332280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39227}}^1$

素因数の和:39279

約数の個数: 32

約数和(自身を含む): 148281840

約数和(自身を除く): 83949560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 39227, 78454, 156908, 196135, 313816, 392270, 784540, 1569080, 1608307, 3216614, 6433228, 8041535, 12866456, 16083070, 32166140, 64332280]

約数ペア:

[(1, 64332280), (2, 32166140), (4, 16083070), (5, 12866456), (8, 8041535), (10, 6433228), (20, 3216614), (40, 1608307), (41, 1569080), (82, 784540), (164, 392270), (205, 313816), (328, 196135), (410, 156908), (820, 78454), (1640, 39227)]