665989400

素因数分解:

$2^3\times 5^2\times {\mathrm{107}}^1\times {\mathrm{31121}}^1$

素因数の和:31244

約数の個数: 48

約数和(自身を含む): 1562946840

約数和(自身を除く): 896957440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 107, 200, 214, 428, 535, 856, 1070, 2140, 2675, 4280, 5350, 10700, 21400, 31121, 62242, 124484, 155605, 248968, 311210, 622420, 778025, 1244840, 1556050, 3112100, 3329947, 6224200, 6659894, 13319788, 16649735, 26639576, 33299470, 66598940, 83248675, 133197880, 166497350, 332994700, 665989400]

約数ペア:

[(1, 665989400), (2, 332994700), (4, 166497350), (5, 133197880), (8, 83248675), (10, 66598940), (20, 33299470), (25, 26639576), (40, 16649735), (50, 13319788), (100, 6659894), (107, 6224200), (200, 3329947), (214, 3112100), (428, 1556050), (535, 1244840), (856, 778025), (1070, 622420), (2140, 311210), (2675, 248968), (4280, 155605), (5350, 124484), (10700, 62242), (21400, 31121)]