19664500

素因数分解:

$2^2\times 5^3\times {\mathrm{67}}^1\times {\mathrm{587}}^1$

素因数の和:673

約数の個数: 48

約数和(自身を含む): 43662528

約数和(自身を除く): 23998028

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 67, 100, 125, 134, 250, 268, 335, 500, 587, 670, 1174, 1340, 1675, 2348, 2935, 3350, 5870, 6700, 8375, 11740, 14675, 16750, 29350, 33500, 39329, 58700, 73375, 78658, 146750, 157316, 196645, 293500, 393290, 786580, 983225, 1966450, 3932900, 4916125, 9832250, 19664500]

約数ペア:

[(1, 19664500), (2, 9832250), (4, 4916125), (5, 3932900), (10, 1966450), (20, 983225), (25, 786580), (50, 393290), (67, 293500), (100, 196645), (125, 157316), (134, 146750), (250, 78658), (268, 73375), (335, 58700), (500, 39329), (587, 33500), (670, 29350), (1174, 16750), (1340, 14675), (1675, 11740), (2348, 8375), (2935, 6700), (3350, 5870)]