39996640

素因数分解:

$2^5\times 5^1\times {\mathrm{457}}^1\times {\mathrm{547}}^1$

素因数の和:1019

約数の個数: 48

約数和(自身を含む): 94871952

約数和(自身を除く): 54875312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 457, 547, 914, 1094, 1828, 2188, 2285, 2735, 3656, 4376, 4570, 5470, 7312, 8752, 9140, 10940, 14624, 17504, 18280, 21880, 36560, 43760, 73120, 87520, 249979, 499958, 999916, 1249895, 1999832, 2499790, 3999664, 4999580, 7999328, 9999160, 19998320, 39996640]

約数ペア:

[(1, 39996640), (2, 19998320), (4, 9999160), (5, 7999328), (8, 4999580), (10, 3999664), (16, 2499790), (20, 1999832), (32, 1249895), (40, 999916), (80, 499958), (160, 249979), (457, 87520), (547, 73120), (914, 43760), (1094, 36560), (1828, 21880), (2188, 18280), (2285, 17504), (2735, 14624), (3656, 10940), (4376, 9140), (4570, 8752), (5470, 7312)]