28597480

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 67554000

約数和(自身を除く): 38956520

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 89, 116, 145, 178, 232, 277, 290, 356, 445, 554, 580, 712, 890, 1108, 1160, 1385, 1780, 2216, 2581, 2770, 3560, 5162, 5540, 8033, 10324, 11080, 12905, 16066, 20648, 24653, 25810, 32132, 40165, 49306, 51620, 64264, 80330, 98612, 103240, 123265, 160660, 197224, 246530, 321320, 493060, 714937, 986120, 1429874, 2859748, 3574685, 5719496, 7149370, 14298740, 28597480]

約数ペア:

[(1, 28597480), (2, 14298740), (4, 7149370), (5, 5719496), (8, 3574685), (10, 2859748), (20, 1429874), (29, 986120), (40, 714937), (58, 493060), (89, 321320), (116, 246530), (145, 197224), (178, 160660), (232, 123265), (277, 103240), (290, 98612), (356, 80330), (445, 64264), (554, 51620), (580, 49306), (712, 40165), (890, 32132), (1108, 25810), (1160, 24653), (1385, 20648), (1780, 16066), (2216, 12905), (2581, 11080), (2770, 10324), (3560, 8033), (5162, 5540)]