2280280

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{523}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 5187600

約数和(自身を除く): 2907320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 523, 545, 872, 1046, 1090, 2092, 2180, 2615, 4184, 4360, 5230, 10460, 20920, 57007, 114014, 228028, 285035, 456056, 570070, 1140140, 2280280]

約数ペア:

[(1, 2280280), (2, 1140140), (4, 570070), (5, 456056), (8, 285035), (10, 228028), (20, 114014), (40, 57007), (109, 20920), (218, 10460), (436, 5230), (523, 4360), (545, 4184), (872, 2615), (1046, 2180), (1090, 2092)]