28176680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{977}}^1$

素因数の和:1098

約数の個数: 64

約数和(自身を含む): 73232640

約数和(自身を除く): 45055960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 280, 412, 515, 721, 824, 977, 1030, 1442, 1954, 2060, 2884, 3605, 3908, 4120, 4885, 5768, 6839, 7210, 7816, 9770, 13678, 14420, 19540, 27356, 28840, 34195, 39080, 54712, 68390, 100631, 136780, 201262, 273560, 402524, 503155, 704417, 805048, 1006310, 1408834, 2012620, 2817668, 3522085, 4025240, 5635336, 7044170, 14088340, 28176680]

約数ペア:

[(1, 28176680), (2, 14088340), (4, 7044170), (5, 5635336), (7, 4025240), (8, 3522085), (10, 2817668), (14, 2012620), (20, 1408834), (28, 1006310), (35, 805048), (40, 704417), (56, 503155), (70, 402524), (103, 273560), (140, 201262), (206, 136780), (280, 100631), (412, 68390), (515, 54712), (721, 39080), (824, 34195), (977, 28840), (1030, 27356), (1442, 19540), (1954, 14420), (2060, 13678), (2884, 9770), (3605, 7816), (3908, 7210), (4120, 6839), (4885, 5768)]