25712080

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{971}}^1$

素因数の和:1315

約数の個数: 40

約数和(自身を含む): 60022944

約数和(自身を除く): 34310864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 662, 971, 1324, 1655, 1942, 2648, 3310, 3884, 4855, 5296, 6620, 7768, 9710, 13240, 15536, 19420, 26480, 38840, 77680, 321401, 642802, 1285604, 1607005, 2571208, 3214010, 5142416, 6428020, 12856040, 25712080]

約数ペア:

[(1, 25712080), (2, 12856040), (4, 6428020), (5, 5142416), (8, 3214010), (10, 2571208), (16, 1607005), (20, 1285604), (40, 642802), (80, 321401), (331, 77680), (662, 38840), (971, 26480), (1324, 19420), (1655, 15536), (1942, 13240), (2648, 9710), (3310, 7768), (3884, 6620), (4855, 5296)]