18473320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:362

約数の個数: 64

約数和(自身を含む): 44352000

約数和(自身を除く): 25878680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 109, 152, 190, 218, 223, 380, 436, 446, 545, 760, 872, 892, 1090, 1115, 1784, 2071, 2180, 2230, 4142, 4237, 4360, 4460, 8284, 8474, 8920, 10355, 16568, 16948, 20710, 21185, 24307, 33896, 41420, 42370, 48614, 82840, 84740, 97228, 121535, 169480, 194456, 243070, 461833, 486140, 923666, 972280, 1847332, 2309165, 3694664, 4618330, 9236660, 18473320]

約数ペア:

[(1, 18473320), (2, 9236660), (4, 4618330), (5, 3694664), (8, 2309165), (10, 1847332), (19, 972280), (20, 923666), (38, 486140), (40, 461833), (76, 243070), (95, 194456), (109, 169480), (152, 121535), (190, 97228), (218, 84740), (223, 82840), (380, 48614), (436, 42370), (446, 41420), (545, 33896), (760, 24307), (872, 21185), (892, 20710), (1090, 16948), (1115, 16568), (1784, 10355), (2071, 8920), (2180, 8474), (2230, 8284), (4142, 4460), (4237, 4360)]