19841600

素因数分解:

$2^6\times 5^2\times {\mathrm{12401}}^1$

素因数の和:12423

約数の個数: 42

約数和(自身を含む): 48826674

約数和(自身を除く): 28985074

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 12401, 24802, 49604, 62005, 99208, 124010, 198416, 248020, 310025, 396832, 496040, 620050, 793664, 992080, 1240100, 1984160, 2480200, 3968320, 4960400, 9920800, 19841600]

約数ペア:

[(1, 19841600), (2, 9920800), (4, 4960400), (5, 3968320), (8, 2480200), (10, 1984160), (16, 1240100), (20, 992080), (25, 793664), (32, 620050), (40, 496040), (50, 396832), (64, 310025), (80, 248020), (100, 198416), (160, 124010), (200, 99208), (320, 62005), (400, 49604), (800, 24802), (1600, 12401)]