78766480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1429}}^1$

素因数の和:1508

約数の個数: 80

約数和(自身を含む): 201080880

約数和(自身を除く): 122314400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 208, 212, 260, 265, 424, 520, 530, 689, 848, 1040, 1060, 1378, 1429, 2120, 2756, 2858, 3445, 4240, 5512, 5716, 6890, 7145, 11024, 11432, 13780, 14290, 18577, 22864, 27560, 28580, 37154, 55120, 57160, 74308, 75737, 92885, 114320, 148616, 151474, 185770, 297232, 302948, 371540, 378685, 605896, 743080, 757370, 984581, 1211792, 1486160, 1514740, 1969162, 3029480, 3938324, 4922905, 6058960, 7876648, 9845810, 15753296, 19691620, 39383240, 78766480]

約数ペア:

[(1, 78766480), (2, 39383240), (4, 19691620), (5, 15753296), (8, 9845810), (10, 7876648), (13, 6058960), (16, 4922905), (20, 3938324), (26, 3029480), (40, 1969162), (52, 1514740), (53, 1486160), (65, 1211792), (80, 984581), (104, 757370), (106, 743080), (130, 605896), (208, 378685), (212, 371540), (260, 302948), (265, 297232), (424, 185770), (520, 151474), (530, 148616), (689, 114320), (848, 92885), (1040, 75737), (1060, 74308), (1378, 57160), (1429, 55120), (2120, 37154), (2756, 28580), (2858, 27560), (3445, 22864), (4240, 18577), (5512, 14290), (5716, 13780), (6890, 11432), (7145, 11024)]