25643440

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4391}}^1$

素因数の和:4477

約数の個数: 40

約数和(自身を含む): 60451488

約数和(自身を除く): 34808048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 4391, 5840, 8782, 17564, 21955, 35128, 43910, 70256, 87820, 175640, 320543, 351280, 641086, 1282172, 1602715, 2564344, 3205430, 5128688, 6410860, 12821720, 25643440]

約数ペア:

[(1, 25643440), (2, 12821720), (4, 6410860), (5, 5128688), (8, 3205430), (10, 2564344), (16, 1602715), (20, 1282172), (40, 641086), (73, 351280), (80, 320543), (146, 175640), (292, 87820), (365, 70256), (584, 43910), (730, 35128), (1168, 21955), (1460, 17564), (2920, 8782), (4391, 5840)]