155878280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{205103}}^1$

素因数の和:205133

約数の個数: 32

約数和(自身を含む): 369187200

約数和(自身を除く): 213308920

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 205103, 410206, 820412, 1025515, 1640824, 2051030, 3896957, 4102060, 7793914, 8204120, 15587828, 19484785, 31175656, 38969570, 77939140, 155878280]

約数ペア:

[(1, 155878280), (2, 77939140), (4, 38969570), (5, 31175656), (8, 19484785), (10, 15587828), (19, 8204120), (20, 7793914), (38, 4102060), (40, 3896957), (76, 2051030), (95, 1640824), (152, 1025515), (190, 820412), (380, 410206), (760, 205103)]