12591400

素因数分解:

$2^3\times 5^2\times {\mathrm{157}}^1\times {\mathrm{401}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 29534940

約数和(自身を除く): 16943540

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 157, 200, 314, 401, 628, 785, 802, 1256, 1570, 1604, 2005, 3140, 3208, 3925, 4010, 6280, 7850, 8020, 10025, 15700, 16040, 20050, 31400, 40100, 62957, 80200, 125914, 251828, 314785, 503656, 629570, 1259140, 1573925, 2518280, 3147850, 6295700, 12591400]

約数ペア:

[(1, 12591400), (2, 6295700), (4, 3147850), (5, 2518280), (8, 1573925), (10, 1259140), (20, 629570), (25, 503656), (40, 314785), (50, 251828), (100, 125914), (157, 80200), (200, 62957), (314, 40100), (401, 31400), (628, 20050), (785, 16040), (802, 15700), (1256, 10025), (1570, 8020), (1604, 7850), (2005, 6280), (3140, 4010), (3208, 3925)]