28811900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{599}}^1$

素因数の和:663

約数の個数: 72

約数和(自身を含む): 69266400

約数和(自身を除く): 40454500

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 37, 50, 52, 65, 74, 100, 130, 148, 185, 260, 325, 370, 481, 599, 650, 740, 925, 962, 1198, 1300, 1850, 1924, 2396, 2405, 2995, 3700, 4810, 5990, 7787, 9620, 11980, 12025, 14975, 15574, 22163, 24050, 29950, 31148, 38935, 44326, 48100, 59900, 77870, 88652, 110815, 155740, 194675, 221630, 288119, 389350, 443260, 554075, 576238, 778700, 1108150, 1152476, 1440595, 2216300, 2881190, 5762380, 7202975, 14405950, 28811900]

約数ペア:

[(1, 28811900), (2, 14405950), (4, 7202975), (5, 5762380), (10, 2881190), (13, 2216300), (20, 1440595), (25, 1152476), (26, 1108150), (37, 778700), (50, 576238), (52, 554075), (65, 443260), (74, 389350), (100, 288119), (130, 221630), (148, 194675), (185, 155740), (260, 110815), (325, 88652), (370, 77870), (481, 59900), (599, 48100), (650, 44326), (740, 38935), (925, 31148), (962, 29950), (1198, 24050), (1300, 22163), (1850, 15574), (1924, 14975), (2396, 12025), (2405, 11980), (2995, 9620), (3700, 7787), (4810, 5990)]