85380880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1549}}^1$

素因数の和:1628

約数の個数: 80

約数和(自身を含む): 217954800

約数和(自身を除く): 132573920

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, 1549, 2120, 2756, 3098, 3445, 4240, 5512, 6196, 6890, 7745, 11024, 12392, 13780, 15490, 20137, 24784, 27560, 30980, 40274, 55120, 61960, 80548, 82097, 100685, 123920, 161096, 164194, 201370, 322192, 328388, 402740, 410485, 656776, 805480, 820970, 1067261, 1313552, 1610960, 1641940, 2134522, 3283880, 4269044, 5336305, 6567760, 8538088, 10672610, 17076176, 21345220, 42690440, 85380880]

約数ペア:

[(1, 85380880), (2, 42690440), (4, 21345220), (5, 17076176), (8, 10672610), (10, 8538088), (13, 6567760), (16, 5336305), (20, 4269044), (26, 3283880), (40, 2134522), (52, 1641940), (53, 1610960), (65, 1313552), (80, 1067261), (104, 820970), (106, 805480), (130, 656776), (208, 410485), (212, 402740), (260, 328388), (265, 322192), (424, 201370), (520, 164194), (530, 161096), (689, 123920), (848, 100685), (1040, 82097), (1060, 80548), (1378, 61960), (1549, 55120), (2120, 40274), (2756, 30980), (3098, 27560), (3445, 24784), (4240, 20137), (5512, 15490), (6196, 13780), (6890, 12392), (7745, 11024)]