29271880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{937}}^1$

素因数の和:1030

約数の個数: 64

約数和(自身を含む): 72938880

約数和(自身を除く): 43667000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 937, 1420, 1562, 1874, 2840, 3124, 3748, 3905, 4685, 6248, 7496, 7810, 9370, 10307, 15620, 18740, 20614, 31240, 37480, 41228, 51535, 66527, 82456, 103070, 133054, 206140, 266108, 332635, 412280, 532216, 665270, 731797, 1330540, 1463594, 2661080, 2927188, 3658985, 5854376, 7317970, 14635940, 29271880]

約数ペア:

[(1, 29271880), (2, 14635940), (4, 7317970), (5, 5854376), (8, 3658985), (10, 2927188), (11, 2661080), (20, 1463594), (22, 1330540), (40, 731797), (44, 665270), (55, 532216), (71, 412280), (88, 332635), (110, 266108), (142, 206140), (220, 133054), (284, 103070), (355, 82456), (440, 66527), (568, 51535), (710, 41228), (781, 37480), (937, 31240), (1420, 20614), (1562, 18740), (1874, 15620), (2840, 10307), (3124, 9370), (3748, 7810), (3905, 7496), (4685, 6248)]