20405964

素因数分解:

$2^2\times 3^1\times {\mathrm{61}}^2\times {\mathrm{457}}^1$

素因数の和:586

約数の個数: 36

約数和(自身を含む): 48513192

約数和(自身を除く): 28107228

約数列:

[1, 2, 3, 4, 6, 12, 61, 122, 183, 244, 366, 457, 732, 914, 1371, 1828, 2742, 3721, 5484, 7442, 11163, 14884, 22326, 27877, 44652, 55754, 83631, 111508, 167262, 334524, 1700497, 3400994, 5101491, 6801988, 10202982, 20405964]

約数ペア:

[(1, 20405964), (2, 10202982), (3, 6801988), (4, 5101491), (6, 3400994), (12, 1700497), (61, 334524), (122, 167262), (183, 111508), (244, 83631), (366, 55754), (457, 44652), (732, 27877), (914, 22326), (1371, 14884), (1828, 11163), (2742, 7442), (3721, 5484)]