66897140

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{6983}}^1$

素因数の和:7471

約数の個数: 24

約数和(自身を含む): 140797440

約数和(自身を除く): 73900300

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2395, 4790, 6983, 9580, 13966, 27932, 34915, 69830, 139660, 3344857, 6689714, 13379428, 16724285, 33448570, 66897140]

約数ペア:

[(1, 66897140), (2, 33448570), (4, 16724285), (5, 13379428), (10, 6689714), (20, 3344857), (479, 139660), (958, 69830), (1916, 34915), (2395, 27932), (4790, 13966), (6983, 9580)]