19681600

素因数分解:

$2^6\times 5^2\times {\mathrm{12301}}^1$

素因数の和:12323

約数の個数: 42

約数和(自身を含む): 48432974

約数和(自身を除く): 28751374

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 12301, 24602, 49204, 61505, 98408, 123010, 196816, 246020, 307525, 393632, 492040, 615050, 787264, 984080, 1230100, 1968160, 2460200, 3936320, 4920400, 9840800, 19681600]

約数ペア:

[(1, 19681600), (2, 9840800), (4, 4920400), (5, 3936320), (8, 2460200), (10, 1968160), (16, 1230100), (20, 984080), (25, 787264), (32, 615050), (40, 492040), (50, 393632), (64, 307525), (80, 246020), (100, 196816), (160, 123010), (200, 98408), (320, 61505), (400, 49204), (800, 24602), (1600, 12301)]