8641240

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{619}}^1$

素因数の和:979

約数の個数: 32

約数和(自身を含む): 19530000

約数和(自身を除く): 10888760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 619, 698, 1238, 1396, 1745, 2476, 2792, 3095, 3490, 4952, 6190, 6980, 12380, 13960, 24760, 216031, 432062, 864124, 1080155, 1728248, 2160310, 4320620, 8641240]

約数ペア:

[(1, 8641240), (2, 4320620), (4, 2160310), (5, 1728248), (8, 1080155), (10, 864124), (20, 432062), (40, 216031), (349, 24760), (619, 13960), (698, 12380), (1238, 6980), (1396, 6190), (1745, 4952), (2476, 3490), (2792, 3095)]