129968125

素因数分解:

$5^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:575

約数の個数: 40

約数和(自身を含む): 189039488

約数和(自身を除く): 59071363

約数列:

[1, 5, 7, 25, 35, 61, 125, 175, 305, 427, 487, 625, 875, 1525, 2135, 2435, 3409, 4375, 7625, 10675, 12175, 17045, 29707, 38125, 53375, 60875, 85225, 148535, 207949, 266875, 304375, 426125, 742675, 1039745, 2130625, 3713375, 5198725, 18566875, 25993625, 129968125]

約数ペア:

[(1, 129968125), (5, 25993625), (7, 18566875), (25, 5198725), (35, 3713375), (61, 2130625), (125, 1039745), (175, 742675), (305, 426125), (427, 304375), (487, 266875), (625, 207949), (875, 148535), (1525, 85225), (2135, 60875), (2435, 53375), (3409, 38125), (4375, 29707), (7625, 17045), (10675, 12175)]