21395600

素因数分解:

$2^4\times 5^2\times {\mathrm{89}}^1\times {\mathrm{601}}^1$

素因数の和:708

約数の個数: 60

約数和(自身を含む): 52066980

約数和(自身を除く): 30671380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 89, 100, 178, 200, 356, 400, 445, 601, 712, 890, 1202, 1424, 1780, 2225, 2404, 3005, 3560, 4450, 4808, 6010, 7120, 8900, 9616, 12020, 15025, 17800, 24040, 30050, 35600, 48080, 53489, 60100, 106978, 120200, 213956, 240400, 267445, 427912, 534890, 855824, 1069780, 1337225, 2139560, 2674450, 4279120, 5348900, 10697800, 21395600]

約数ペア:

[(1, 21395600), (2, 10697800), (4, 5348900), (5, 4279120), (8, 2674450), (10, 2139560), (16, 1337225), (20, 1069780), (25, 855824), (40, 534890), (50, 427912), (80, 267445), (89, 240400), (100, 213956), (178, 120200), (200, 106978), (356, 60100), (400, 53489), (445, 48080), (601, 35600), (712, 30050), (890, 24040), (1202, 17800), (1424, 15025), (1780, 12020), (2225, 9616), (2404, 8900), (3005, 7120), (3560, 6010), (4450, 4808)]