19727656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 42739200

約数和(自身を除く): 23011544

約数列:

[1, 2, 4, 8, 13, 26, 29, 31, 52, 58, 62, 104, 116, 124, 211, 232, 248, 377, 403, 422, 754, 806, 844, 899, 1508, 1612, 1688, 1798, 2743, 3016, 3224, 3596, 5486, 6119, 6541, 7192, 10972, 11687, 12238, 13082, 21944, 23374, 24476, 26164, 46748, 48952, 52328, 79547, 85033, 93496, 159094, 170066, 189689, 318188, 340132, 379378, 636376, 680264, 758756, 1517512, 2465957, 4931914, 9863828, 19727656]

約数ペア:

[(1, 19727656), (2, 9863828), (4, 4931914), (8, 2465957), (13, 1517512), (26, 758756), (29, 680264), (31, 636376), (52, 379378), (58, 340132), (62, 318188), (104, 189689), (116, 170066), (124, 159094), (211, 93496), (232, 85033), (248, 79547), (377, 52328), (403, 48952), (422, 46748), (754, 26164), (806, 24476), (844, 23374), (899, 21944), (1508, 13082), (1612, 12238), (1688, 11687), (1798, 10972), (2743, 7192), (3016, 6541), (3224, 6119), (3596, 5486)]