21930800

素因数分解:

$2^4\times 5^2\times {\mathrm{109}}^1\times {\mathrm{503}}^1$

素因数の和:630

約数の個数: 60

約数和(自身を含む): 53277840

約数和(自身を除く): 31347040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 109, 200, 218, 400, 436, 503, 545, 872, 1006, 1090, 1744, 2012, 2180, 2515, 2725, 4024, 4360, 5030, 5450, 8048, 8720, 10060, 10900, 12575, 20120, 21800, 25150, 40240, 43600, 50300, 54827, 100600, 109654, 201200, 219308, 274135, 438616, 548270, 877232, 1096540, 1370675, 2193080, 2741350, 4386160, 5482700, 10965400, 21930800]

約数ペア:

[(1, 21930800), (2, 10965400), (4, 5482700), (5, 4386160), (8, 2741350), (10, 2193080), (16, 1370675), (20, 1096540), (25, 877232), (40, 548270), (50, 438616), (80, 274135), (100, 219308), (109, 201200), (200, 109654), (218, 100600), (400, 54827), (436, 50300), (503, 43600), (545, 40240), (872, 25150), (1006, 21800), (1090, 20120), (1744, 12575), (2012, 10900), (2180, 10060), (2515, 8720), (2725, 8048), (4024, 5450), (4360, 5030)]