19841200

素因数分解:

$2^4\times 5^2\times {\mathrm{49603}}^1$

素因数の和:49621

約数の個数: 30

約数和(自身を含む): 47669444

約数和(自身を除く): 27828244

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 49603, 99206, 198412, 248015, 396824, 496030, 793648, 992060, 1240075, 1984120, 2480150, 3968240, 4960300, 9920600, 19841200]

約数ペア:

[(1, 19841200), (2, 9920600), (4, 4960300), (5, 3968240), (8, 2480150), (10, 1984120), (16, 1240075), (20, 992060), (25, 793648), (40, 496030), (50, 396824), (80, 248015), (100, 198412), (200, 99206), (400, 49603)]