259556040400

素因数分解:

$2^4\times 5^2\times {\mathrm{648890101}}^1$

素因数の和:648890119

約数の個数: 30

約数和(自身を含む): 623583388022

約数和(自身を除く): 364027347622

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 648890101, 1297780202, 2595560404, 3244450505, 5191120808, 6488901010, 10382241616, 12977802020, 16222252525, 25955604040, 32444505050, 51911208080, 64889010100, 129778020200, 259556040400]

約数ペア:

[(1, 259556040400), (2, 129778020200), (4, 64889010100), (5, 51911208080), (8, 32444505050), (10, 25955604040), (16, 16222252525), (20, 12977802020), (25, 10382241616), (40, 6488901010), (50, 5191120808), (80, 3244450505), (100, 2595560404), (200, 1297780202), (400, 648890101)]