281681080

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{19507}}^1$

素因数の和:19556

約数の個数: 48

約数和(自身を含む): 668929320

約数和(自身を除く): 387248240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2888, 3610, 7220, 14440, 19507, 39014, 78028, 97535, 156056, 195070, 370633, 390140, 741266, 780280, 1482532, 1853165, 2965064, 3706330, 7042027, 7412660, 14084054, 14825320, 28168108, 35210135, 56336216, 70420270, 140840540, 281681080]

約数ペア:

[(1, 281681080), (2, 140840540), (4, 70420270), (5, 56336216), (8, 35210135), (10, 28168108), (19, 14825320), (20, 14084054), (38, 7412660), (40, 7042027), (76, 3706330), (95, 2965064), (152, 1853165), (190, 1482532), (361, 780280), (380, 741266), (722, 390140), (760, 370633), (1444, 195070), (1805, 156056), (2888, 97535), (3610, 78028), (7220, 39014), (14440, 19507)]