2781428

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{601}}^1$

素因数の和:707

約数の個数: 24

約数和(自身を含む): 5309640

約数和(自身を除く): 2528212

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 601, 1157, 1202, 2314, 2404, 4628, 7813, 15626, 31252, 53489, 106978, 213956, 695357, 1390714, 2781428]

約数ペア:

[(1, 2781428), (2, 1390714), (4, 695357), (13, 213956), (26, 106978), (52, 53489), (89, 31252), (178, 15626), (356, 7813), (601, 4628), (1157, 2404), (1202, 2314)]