28163600

素因数分解:

$2^4\times 5^2\times {\mathrm{181}}^1\times {\mathrm{389}}^1$

素因数の和:588

約数の個数: 60

約数和(自身を含む): 68211780

約数和(自身を除く): 40048180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 181, 200, 362, 389, 400, 724, 778, 905, 1448, 1556, 1810, 1945, 2896, 3112, 3620, 3890, 4525, 6224, 7240, 7780, 9050, 9725, 14480, 15560, 18100, 19450, 31120, 36200, 38900, 70409, 72400, 77800, 140818, 155600, 281636, 352045, 563272, 704090, 1126544, 1408180, 1760225, 2816360, 3520450, 5632720, 7040900, 14081800, 28163600]

約数ペア:

[(1, 28163600), (2, 14081800), (4, 7040900), (5, 5632720), (8, 3520450), (10, 2816360), (16, 1760225), (20, 1408180), (25, 1126544), (40, 704090), (50, 563272), (80, 352045), (100, 281636), (181, 155600), (200, 140818), (362, 77800), (389, 72400), (400, 70409), (724, 38900), (778, 36200), (905, 31120), (1448, 19450), (1556, 18100), (1810, 15560), (1945, 14480), (2896, 9725), (3112, 9050), (3620, 7780), (3890, 7240), (4525, 6224)]