20817690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{40819}}^1$

素因数の和:40846

約数の個数: 32

約数和(自身を含む): 52902720

約数和(自身を除く): 32085030

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 40819, 81638, 122457, 204095, 244914, 408190, 612285, 693923, 1224570, 1387846, 2081769, 3469615, 4163538, 6939230, 10408845, 20817690]

約数ペア:

[(1, 20817690), (2, 10408845), (3, 6939230), (5, 4163538), (6, 3469615), (10, 2081769), (15, 1387846), (17, 1224570), (30, 693923), (34, 612285), (51, 408190), (85, 244914), (102, 204095), (170, 122457), (255, 81638), (510, 40819)]