12448400

素因数分解:

$2^4\times 5^2\times {\mathrm{31121}}^1$

素因数の和:31139

約数の個数: 30

約数和(自身を含む): 29908242

約数和(自身を除く): 17459842

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 31121, 62242, 124484, 155605, 248968, 311210, 497936, 622420, 778025, 1244840, 1556050, 2489680, 3112100, 6224200, 12448400]

約数ペア:

[(1, 12448400), (2, 6224200), (4, 3112100), (5, 2489680), (8, 1556050), (10, 1244840), (16, 778025), (20, 622420), (25, 497936), (40, 311210), (50, 248968), (80, 155605), (100, 124484), (200, 62242), (400, 31121)]