1644294760

素因数分解:

$2^3\times 5^1\times {\mathrm{4993}}^1\times {\mathrm{8233}}^1$

素因数の和:13237

約数の個数: 32

約数和(自身を含む): 3700853640

約数和(自身を除く): 2056558880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4993, 8233, 9986, 16466, 19972, 24965, 32932, 39944, 41165, 49930, 65864, 82330, 99860, 164660, 199720, 329320, 41107369, 82214738, 164429476, 205536845, 328858952, 411073690, 822147380, 1644294760]

約数ペア:

[(1, 1644294760), (2, 822147380), (4, 411073690), (5, 328858952), (8, 205536845), (10, 164429476), (20, 82214738), (40, 41107369), (4993, 329320), (8233, 199720), (9986, 164660), (16466, 99860), (19972, 82330), (24965, 65864), (32932, 49930), (39944, 41165)]