1278320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2$

素因数の和:90

約数の個数: 60

約数和(自身を含む): 3240120

約数和(自身を除く): 1961800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 58, 76, 80, 95, 116, 145, 152, 190, 232, 290, 304, 380, 464, 551, 580, 760, 841, 1102, 1160, 1520, 1682, 2204, 2320, 2755, 3364, 4205, 4408, 5510, 6728, 8410, 8816, 11020, 13456, 15979, 16820, 22040, 31958, 33640, 44080, 63916, 67280, 79895, 127832, 159790, 255664, 319580, 639160, 1278320]

約数ペア:

[(1, 1278320), (2, 639160), (4, 319580), (5, 255664), (8, 159790), (10, 127832), (16, 79895), (19, 67280), (20, 63916), (29, 44080), (38, 33640), (40, 31958), (58, 22040), (76, 16820), (80, 15979), (95, 13456), (116, 11020), (145, 8816), (152, 8410), (190, 6728), (232, 5510), (290, 4408), (304, 4205), (380, 3364), (464, 2755), (551, 2320), (580, 2204), (760, 1682), (841, 1520), (1102, 1160)]