19924280

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3343}}^1$

素因数の和:3503

約数の個数: 32

約数和(自身を含む): 45144000

約数和(自身を除く): 25219720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 3343, 5960, 6686, 13372, 16715, 26744, 33430, 66860, 133720, 498107, 996214, 1992428, 2490535, 3984856, 4981070, 9962140, 19924280]

約数ペア:

[(1, 19924280), (2, 9962140), (4, 4981070), (5, 3984856), (8, 2490535), (10, 1992428), (20, 996214), (40, 498107), (149, 133720), (298, 66860), (596, 33430), (745, 26744), (1192, 16715), (1490, 13372), (2980, 6686), (3343, 5960)]