20631990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{9421}}^1$

素因数の和:9504

約数の個数: 32

約数和(自身を含む): 50200416

約数和(自身を除く): 29568426

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 73, 146, 219, 365, 438, 730, 1095, 2190, 9421, 18842, 28263, 47105, 56526, 94210, 141315, 282630, 687733, 1375466, 2063199, 3438665, 4126398, 6877330, 10315995, 20631990]

約数ペア:

[(1, 20631990), (2, 10315995), (3, 6877330), (5, 4126398), (6, 3438665), (10, 2063199), (15, 1375466), (30, 687733), (73, 282630), (146, 141315), (219, 94210), (365, 56526), (438, 47105), (730, 28263), (1095, 18842), (2190, 9421)]