20974900

素因数分解:

$2^2\times 5^2\times {\mathrm{349}}^1\times {\mathrm{601}}^1$

素因数の和:964

約数の個数: 36

約数和(自身を含む): 45721900

約数和(自身を除く): 24747000

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 349, 601, 698, 1202, 1396, 1745, 2404, 3005, 3490, 6010, 6980, 8725, 12020, 15025, 17450, 30050, 34900, 60100, 209749, 419498, 838996, 1048745, 2097490, 4194980, 5243725, 10487450, 20974900]

約数ペア:

[(1, 20974900), (2, 10487450), (4, 5243725), (5, 4194980), (10, 2097490), (20, 1048745), (25, 838996), (50, 419498), (100, 209749), (349, 60100), (601, 34900), (698, 30050), (1202, 17450), (1396, 15025), (1745, 12020), (2404, 8725), (3005, 6980), (3490, 6010)]