21621200

素因数分解:

$2^4\times 5^2\times {\mathrm{191}}^1\times {\mathrm{283}}^1$

素因数の和:492

約数の個数: 60

約数和(自身を含む): 52401408

約数和(自身を除く): 30780208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 191, 200, 283, 382, 400, 566, 764, 955, 1132, 1415, 1528, 1910, 2264, 2830, 3056, 3820, 4528, 4775, 5660, 7075, 7640, 9550, 11320, 14150, 15280, 19100, 22640, 28300, 38200, 54053, 56600, 76400, 108106, 113200, 216212, 270265, 432424, 540530, 864848, 1081060, 1351325, 2162120, 2702650, 4324240, 5405300, 10810600, 21621200]

約数ペア:

[(1, 21621200), (2, 10810600), (4, 5405300), (5, 4324240), (8, 2702650), (10, 2162120), (16, 1351325), (20, 1081060), (25, 864848), (40, 540530), (50, 432424), (80, 270265), (100, 216212), (191, 113200), (200, 108106), (283, 76400), (382, 56600), (400, 54053), (566, 38200), (764, 28300), (955, 22640), (1132, 19100), (1415, 15280), (1528, 14150), (1910, 11320), (2264, 9550), (2830, 7640), (3056, 7075), (3820, 5660), (4528, 4775)]