19115940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1601}}^1$

素因数の和:1812

約数の個数: 48

約数和(自身を含む): 53827200

約数和(自身を除く): 34711260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 199, 398, 597, 796, 995, 1194, 1601, 1990, 2388, 2985, 3202, 3980, 4803, 5970, 6404, 8005, 9606, 11940, 16010, 19212, 24015, 32020, 48030, 96060, 318599, 637198, 955797, 1274396, 1592995, 1911594, 3185990, 3823188, 4778985, 6371980, 9557970, 19115940]

約数ペア:

[(1, 19115940), (2, 9557970), (3, 6371980), (4, 4778985), (5, 3823188), (6, 3185990), (10, 1911594), (12, 1592995), (15, 1274396), (20, 955797), (30, 637198), (60, 318599), (199, 96060), (398, 48030), (597, 32020), (796, 24015), (995, 19212), (1194, 16010), (1601, 11940), (1990, 9606), (2388, 8005), (2985, 6404), (3202, 5970), (3980, 4803)]