19001300

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{1367}}^1$

素因数の和:1520

約数の個数: 36

約数和(自身を含む): 41559840

約数和(自身を除く): 22558540

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1367, 1390, 2734, 2780, 3475, 5468, 6835, 6950, 13670, 13900, 27340, 34175, 68350, 136700, 190013, 380026, 760052, 950065, 1900130, 3800260, 4750325, 9500650, 19001300]

約数ペア:

[(1, 19001300), (2, 9500650), (4, 4750325), (5, 3800260), (10, 1900130), (20, 950065), (25, 760052), (50, 380026), (100, 190013), (139, 136700), (278, 68350), (556, 34175), (695, 27340), (1367, 13900), (1390, 13670), (2734, 6950), (2780, 6835), (3475, 5468)]