1338640

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{577}}^1$

素因数の和:619

約数の個数: 40

約数和(自身を含む): 3225240

約数和(自身を除く): 1886600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 577, 580, 1154, 1160, 2308, 2320, 2885, 4616, 5770, 9232, 11540, 16733, 23080, 33466, 46160, 66932, 83665, 133864, 167330, 267728, 334660, 669320, 1338640]

約数ペア:

[(1, 1338640), (2, 669320), (4, 334660), (5, 267728), (8, 167330), (10, 133864), (16, 83665), (20, 66932), (29, 46160), (40, 33466), (58, 23080), (80, 16733), (116, 11540), (145, 9232), (232, 5770), (290, 4616), (464, 2885), (577, 2320), (580, 2308), (1154, 1160)]