20467890

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{8423}}^1$

素因数の和:8445

約数の個数: 48

約数和(自身を含む): 55194048

約数和(自身を除く): 34726158

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 810, 1215, 2430, 8423, 16846, 25269, 42115, 50538, 75807, 84230, 126345, 151614, 227421, 252690, 379035, 454842, 682263, 758070, 1137105, 1364526, 2046789, 2274210, 3411315, 4093578, 6822630, 10233945, 20467890]

約数ペア:

[(1, 20467890), (2, 10233945), (3, 6822630), (5, 4093578), (6, 3411315), (9, 2274210), (10, 2046789), (15, 1364526), (18, 1137105), (27, 758070), (30, 682263), (45, 454842), (54, 379035), (81, 252690), (90, 227421), (135, 151614), (162, 126345), (243, 84230), (270, 75807), (405, 50538), (486, 42115), (810, 25269), (1215, 16846), (2430, 8423)]