780708

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 1995840

約数和(自身を除く): 1215132

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 43, 51, 68, 86, 89, 102, 129, 172, 178, 204, 258, 267, 356, 516, 534, 731, 1068, 1462, 1513, 2193, 2924, 3026, 3827, 4386, 4539, 6052, 7654, 8772, 9078, 11481, 15308, 18156, 22962, 45924, 65059, 130118, 195177, 260236, 390354, 780708]

約数ペア:

[(1, 780708), (2, 390354), (3, 260236), (4, 195177), (6, 130118), (12, 65059), (17, 45924), (34, 22962), (43, 18156), (51, 15308), (68, 11481), (86, 9078), (89, 8772), (102, 7654), (129, 6052), (172, 4539), (178, 4386), (204, 3827), (258, 3026), (267, 2924), (356, 2193), (516, 1513), (534, 1462), (731, 1068)]