19941200

素因数分解:

$2^4\times 5^2\times {\mathrm{49853}}^1$

素因数の和:49871

約数の個数: 30

約数和(自身を含む): 47909694

約数和(自身を除く): 27968494

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 49853, 99706, 199412, 249265, 398824, 498530, 797648, 997060, 1246325, 1994120, 2492650, 3988240, 4985300, 9970600, 19941200]

約数ペア:

[(1, 19941200), (2, 9970600), (4, 4985300), (5, 3988240), (8, 2492650), (10, 1994120), (16, 1246325), (20, 997060), (25, 797648), (40, 498530), (50, 398824), (80, 249265), (100, 199412), (200, 99706), (400, 49853)]