28365724

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 54885600

約数和(自身を除く): 26519876

約数列:

[1, 2, 4, 17, 34, 43, 68, 86, 89, 109, 172, 178, 218, 356, 436, 731, 1462, 1513, 1853, 2924, 3026, 3706, 3827, 4687, 6052, 7412, 7654, 9374, 9701, 15308, 18748, 19402, 38804, 65059, 79679, 130118, 159358, 164917, 260236, 318716, 329834, 417143, 659668, 834286, 1668572, 7091431, 14182862, 28365724]

約数ペア:

[(1, 28365724), (2, 14182862), (4, 7091431), (17, 1668572), (34, 834286), (43, 659668), (68, 417143), (86, 329834), (89, 318716), (109, 260236), (172, 164917), (178, 159358), (218, 130118), (356, 79679), (436, 65059), (731, 38804), (1462, 19402), (1513, 18748), (1853, 15308), (2924, 9701), (3026, 9374), (3706, 7654), (3827, 7412), (4687, 6052)]