646240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{577}}^1$

素因数の和:599

約数の個数: 48

約数和(自身を含む): 1747872

約数和(自身を除く): 1101632

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 577, 1120, 1154, 2308, 2885, 4039, 4616, 5770, 8078, 9232, 11540, 16156, 18464, 20195, 23080, 32312, 40390, 46160, 64624, 80780, 92320, 129248, 161560, 323120, 646240]

約数ペア:

[(1, 646240), (2, 323120), (4, 161560), (5, 129248), (7, 92320), (8, 80780), (10, 64624), (14, 46160), (16, 40390), (20, 32312), (28, 23080), (32, 20195), (35, 18464), (40, 16156), (56, 11540), (70, 9232), (80, 8078), (112, 5770), (140, 4616), (160, 4039), (224, 2885), (280, 2308), (560, 1154), (577, 1120)]