27978640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1$

素因数の和:344

約数の個数: 80

約数和(自身を含む): 69638400

約数和(自身を除く): 41659760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 79, 80, 95, 152, 158, 190, 233, 304, 316, 380, 395, 466, 632, 760, 790, 932, 1165, 1264, 1501, 1520, 1580, 1864, 2330, 3002, 3160, 3728, 4427, 4660, 6004, 6320, 7505, 8854, 9320, 12008, 15010, 17708, 18407, 18640, 22135, 24016, 30020, 35416, 36814, 44270, 60040, 70832, 73628, 88540, 92035, 120080, 147256, 177080, 184070, 294512, 349733, 354160, 368140, 699466, 736280, 1398932, 1472560, 1748665, 2797864, 3497330, 5595728, 6994660, 13989320, 27978640]

約数ペア:

[(1, 27978640), (2, 13989320), (4, 6994660), (5, 5595728), (8, 3497330), (10, 2797864), (16, 1748665), (19, 1472560), (20, 1398932), (38, 736280), (40, 699466), (76, 368140), (79, 354160), (80, 349733), (95, 294512), (152, 184070), (158, 177080), (190, 147256), (233, 120080), (304, 92035), (316, 88540), (380, 73628), (395, 70832), (466, 60040), (632, 44270), (760, 36814), (790, 35416), (932, 30020), (1165, 24016), (1264, 22135), (1501, 18640), (1520, 18407), (1580, 17708), (1864, 15010), (2330, 12008), (3002, 9320), (3160, 8854), (3728, 7505), (4427, 6320), (4660, 6004)]