20815290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5641}}^1$

素因数の和:5695

約数の個数: 48

約数和(自身を含む): 55449576

約数和(自身を除く): 34634286

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 41, 45, 82, 90, 123, 205, 246, 369, 410, 615, 738, 1230, 1845, 3690, 5641, 11282, 16923, 28205, 33846, 50769, 56410, 84615, 101538, 169230, 231281, 253845, 462562, 507690, 693843, 1156405, 1387686, 2081529, 2312810, 3469215, 4163058, 6938430, 10407645, 20815290]

約数ペア:

[(1, 20815290), (2, 10407645), (3, 6938430), (5, 4163058), (6, 3469215), (9, 2312810), (10, 2081529), (15, 1387686), (18, 1156405), (30, 693843), (41, 507690), (45, 462562), (82, 253845), (90, 231281), (123, 169230), (205, 101538), (246, 84615), (369, 56410), (410, 50769), (615, 33846), (738, 28205), (1230, 16923), (1845, 11282), (3690, 5641)]