15228880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:308

約数の個数: 80

約数和(自身を含む): 38301120

約数和(自身を除く): 23072240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 43, 76, 80, 86, 95, 152, 172, 190, 215, 233, 304, 344, 380, 430, 466, 688, 760, 817, 860, 932, 1165, 1520, 1634, 1720, 1864, 2330, 3268, 3440, 3728, 4085, 4427, 4660, 6536, 8170, 8854, 9320, 10019, 13072, 16340, 17708, 18640, 20038, 22135, 32680, 35416, 40076, 44270, 50095, 65360, 70832, 80152, 88540, 100190, 160304, 177080, 190361, 200380, 354160, 380722, 400760, 761444, 801520, 951805, 1522888, 1903610, 3045776, 3807220, 7614440, 15228880]

約数ペア:

[(1, 15228880), (2, 7614440), (4, 3807220), (5, 3045776), (8, 1903610), (10, 1522888), (16, 951805), (19, 801520), (20, 761444), (38, 400760), (40, 380722), (43, 354160), (76, 200380), (80, 190361), (86, 177080), (95, 160304), (152, 100190), (172, 88540), (190, 80152), (215, 70832), (233, 65360), (304, 50095), (344, 44270), (380, 40076), (430, 35416), (466, 32680), (688, 22135), (760, 20038), (817, 18640), (860, 17708), (932, 16340), (1165, 13072), (1520, 10019), (1634, 9320), (1720, 8854), (1864, 8170), (2330, 6536), (3268, 4660), (3440, 4427), (3728, 4085)]