720654328

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{421}}^1\times {\mathrm{5783}}^1$

素因数の和:6247

約数の個数: 32

約数和(自身を含む): 1391283360

約数和(自身を除く): 670629032

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 421, 842, 1684, 3368, 5783, 11566, 15577, 23132, 31154, 46264, 62308, 124616, 213971, 427942, 855884, 1711768, 2434643, 4869286, 9738572, 19477144, 90081791, 180163582, 360327164, 720654328]

約数ペア:

[(1, 720654328), (2, 360327164), (4, 180163582), (8, 90081791), (37, 19477144), (74, 9738572), (148, 4869286), (296, 2434643), (421, 1711768), (842, 855884), (1684, 427942), (3368, 213971), (5783, 124616), (11566, 62308), (15577, 46264), (23132, 31154)]