18873080

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1307}}^1$

素因数の和:1356

約数の個数: 48

約数和(自身を含む): 44851320

約数和(自身を除く): 25978240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1307, 1444, 1805, 2614, 2888, 3610, 5228, 6535, 7220, 10456, 13070, 14440, 24833, 26140, 49666, 52280, 99332, 124165, 198664, 248330, 471827, 496660, 943654, 993320, 1887308, 2359135, 3774616, 4718270, 9436540, 18873080]

約数ペア:

[(1, 18873080), (2, 9436540), (4, 4718270), (5, 3774616), (8, 2359135), (10, 1887308), (19, 993320), (20, 943654), (38, 496660), (40, 471827), (76, 248330), (95, 198664), (152, 124165), (190, 99332), (361, 52280), (380, 49666), (722, 26140), (760, 24833), (1307, 14440), (1444, 13070), (1805, 10456), (2614, 7220), (2888, 6535), (3610, 5228)]