20499030

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{953}}^1$

素因数の和:1205

約数の個数: 48

約数和(自身を含む): 53576640

約数和(自身を除く): 33077610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 239, 478, 717, 953, 1195, 1434, 1906, 2151, 2390, 2859, 3585, 4302, 4765, 5718, 7170, 8577, 9530, 10755, 14295, 17154, 21510, 28590, 42885, 85770, 227767, 455534, 683301, 1138835, 1366602, 2049903, 2277670, 3416505, 4099806, 6833010, 10249515, 20499030]

約数ペア:

[(1, 20499030), (2, 10249515), (3, 6833010), (5, 4099806), (6, 3416505), (9, 2277670), (10, 2049903), (15, 1366602), (18, 1138835), (30, 683301), (45, 455534), (90, 227767), (239, 85770), (478, 42885), (717, 28590), (953, 21510), (1195, 17154), (1434, 14295), (1906, 10755), (2151, 9530), (2390, 8577), (2859, 7170), (3585, 5718), (4302, 4765)]