72509920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{641}}^1$

素因数の和:764

約数の個数: 96

約数和(自身を含む): 198023616

約数和(自身を除く): 125513696

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 101, 112, 140, 160, 202, 224, 280, 404, 505, 560, 641, 707, 808, 1010, 1120, 1282, 1414, 1616, 2020, 2564, 2828, 3205, 3232, 3535, 4040, 4487, 5128, 5656, 6410, 7070, 8080, 8974, 10256, 11312, 12820, 14140, 16160, 17948, 20512, 22435, 22624, 25640, 28280, 35896, 44870, 51280, 56560, 64741, 71792, 89740, 102560, 113120, 129482, 143584, 179480, 258964, 323705, 358960, 453187, 517928, 647410, 717920, 906374, 1035856, 1294820, 1812748, 2071712, 2265935, 2589640, 3625496, 4531870, 5179280, 7250992, 9063740, 10358560, 14501984, 18127480, 36254960, 72509920]

約数ペア:

[(1, 72509920), (2, 36254960), (4, 18127480), (5, 14501984), (7, 10358560), (8, 9063740), (10, 7250992), (14, 5179280), (16, 4531870), (20, 3625496), (28, 2589640), (32, 2265935), (35, 2071712), (40, 1812748), (56, 1294820), (70, 1035856), (80, 906374), (101, 717920), (112, 647410), (140, 517928), (160, 453187), (202, 358960), (224, 323705), (280, 258964), (404, 179480), (505, 143584), (560, 129482), (641, 113120), (707, 102560), (808, 89740), (1010, 71792), (1120, 64741), (1282, 56560), (1414, 51280), (1616, 44870), (2020, 35896), (2564, 28280), (2828, 25640), (3205, 22624), (3232, 22435), (3535, 20512), (4040, 17948), (4487, 16160), (5128, 14140), (5656, 12820), (6410, 11312), (7070, 10256), (8080, 8974)]