399237730

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{487}}^1\times {\mathrm{1123}}^1$

素因数の和:1690

約数の個数: 32

約数和(自身を含む): 730617984

約数和(自身を除く): 331380254

約数列:

[1, 2, 5, 10, 73, 146, 365, 487, 730, 974, 1123, 2246, 2435, 4870, 5615, 11230, 35551, 71102, 81979, 163958, 177755, 355510, 409895, 546901, 819790, 1093802, 2734505, 5469010, 39923773, 79847546, 199618865, 399237730]

約数ペア:

[(1, 399237730), (2, 199618865), (5, 79847546), (10, 39923773), (73, 5469010), (146, 2734505), (365, 1093802), (487, 819790), (730, 546901), (974, 409895), (1123, 355510), (2246, 177755), (2435, 163958), (4870, 81979), (5615, 71102), (11230, 35551)]