21629500

素因数分解:

$2^2\times 5^3\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:439

約数の個数: 48

約数和(自身を含む): 47698560

約数和(自身を除く): 26069060

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 181, 239, 250, 362, 478, 500, 724, 905, 956, 1195, 1810, 2390, 3620, 4525, 4780, 5975, 9050, 11950, 18100, 22625, 23900, 29875, 43259, 45250, 59750, 86518, 90500, 119500, 173036, 216295, 432590, 865180, 1081475, 2162950, 4325900, 5407375, 10814750, 21629500]

約数ペア:

[(1, 21629500), (2, 10814750), (4, 5407375), (5, 4325900), (10, 2162950), (20, 1081475), (25, 865180), (50, 432590), (100, 216295), (125, 173036), (181, 119500), (239, 90500), (250, 86518), (362, 59750), (478, 45250), (500, 43259), (724, 29875), (905, 23900), (956, 22625), (1195, 18100), (1810, 11950), (2390, 9050), (3620, 5975), (4525, 4780)]