254131420

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1\times {\mathrm{797}}^1$

素因数の和:1062

約数の個数: 48

約数和(自身を含む): 542959200

約数和(自身を除く): 288827780

約数列:

[1, 2, 4, 5, 10, 20, 107, 149, 214, 298, 428, 535, 596, 745, 797, 1070, 1490, 1594, 2140, 2980, 3188, 3985, 7970, 15940, 15943, 31886, 63772, 79715, 85279, 118753, 159430, 170558, 237506, 318860, 341116, 426395, 475012, 593765, 852790, 1187530, 1705580, 2375060, 12706571, 25413142, 50826284, 63532855, 127065710, 254131420]

約数ペア:

[(1, 254131420), (2, 127065710), (4, 63532855), (5, 50826284), (10, 25413142), (20, 12706571), (107, 2375060), (149, 1705580), (214, 1187530), (298, 852790), (428, 593765), (535, 475012), (596, 426395), (745, 341116), (797, 318860), (1070, 237506), (1490, 170558), (1594, 159430), (2140, 118753), (2980, 85279), (3188, 79715), (3985, 63772), (7970, 31886), (15940, 15943)]