28453780

素因数分解:

$2^2\times 5^1\times {\mathrm{683}}^1\times {\mathrm{2083}}^1$

素因数の和:2775

約数の個数: 24

約数和(自身を含む): 59869152

約数和(自身を除く): 31415372

約数列:

[1, 2, 4, 5, 10, 20, 683, 1366, 2083, 2732, 3415, 4166, 6830, 8332, 10415, 13660, 20830, 41660, 1422689, 2845378, 5690756, 7113445, 14226890, 28453780]

約数ペア:

[(1, 28453780), (2, 14226890), (4, 7113445), (5, 5690756), (10, 2845378), (20, 1422689), (683, 41660), (1366, 20830), (2083, 13660), (2732, 10415), (3415, 8332), (4166, 6830)]