99739600

素因数分解:

$2^4\times 5^2\times {\mathrm{389}}^1\times {\mathrm{641}}^1$

素因数の和:1048

約数の個数: 60

約数和(自身を含む): 240615180

約数和(自身を除く): 140875580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 389, 400, 641, 778, 1282, 1556, 1945, 2564, 3112, 3205, 3890, 5128, 6224, 6410, 7780, 9725, 10256, 12820, 15560, 16025, 19450, 25640, 31120, 32050, 38900, 51280, 64100, 77800, 128200, 155600, 249349, 256400, 498698, 997396, 1246745, 1994792, 2493490, 3989584, 4986980, 6233725, 9973960, 12467450, 19947920, 24934900, 49869800, 99739600]

約数ペア:

[(1, 99739600), (2, 49869800), (4, 24934900), (5, 19947920), (8, 12467450), (10, 9973960), (16, 6233725), (20, 4986980), (25, 3989584), (40, 2493490), (50, 1994792), (80, 1246745), (100, 997396), (200, 498698), (389, 256400), (400, 249349), (641, 155600), (778, 128200), (1282, 77800), (1556, 64100), (1945, 51280), (2564, 38900), (3112, 32050), (3205, 31120), (3890, 25640), (5128, 19450), (6224, 16025), (6410, 15560), (7780, 12820), (9725, 10256)]