725332720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{1307}}^1$

素因数の和:2318

約数の個数: 80

約数和(自身を含む): 1930733568

約数和(自身を除く): 1205400848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 991, 1307, 1982, 2614, 3964, 4955, 5228, 6535, 6937, 7928, 9149, 9910, 10456, 13070, 13874, 15856, 18298, 19820, 20912, 26140, 27748, 34685, 36596, 39640, 45745, 52280, 55496, 69370, 73192, 79280, 91490, 104560, 110992, 138740, 146384, 182980, 277480, 365960, 554960, 731920, 1295237, 2590474, 5180948, 6476185, 9066659, 10361896, 12952370, 18133318, 20723792, 25904740, 36266636, 45333295, 51809480, 72533272, 90666590, 103618960, 145066544, 181333180, 362666360, 725332720]

約数ペア:

[(1, 725332720), (2, 362666360), (4, 181333180), (5, 145066544), (7, 103618960), (8, 90666590), (10, 72533272), (14, 51809480), (16, 45333295), (20, 36266636), (28, 25904740), (35, 20723792), (40, 18133318), (56, 12952370), (70, 10361896), (80, 9066659), (112, 6476185), (140, 5180948), (280, 2590474), (560, 1295237), (991, 731920), (1307, 554960), (1982, 365960), (2614, 277480), (3964, 182980), (4955, 146384), (5228, 138740), (6535, 110992), (6937, 104560), (7928, 91490), (9149, 79280), (9910, 73192), (10456, 69370), (13070, 55496), (13874, 52280), (15856, 45745), (18298, 39640), (19820, 36596), (20912, 34685), (26140, 27748)]