20478168

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{7687}}^1$

素因数の和:7736

約数の個数: 48

約数和(自身を含む): 56968080

約数和(自身を除く): 36489912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 111, 148, 222, 296, 333, 444, 666, 888, 1332, 2664, 7687, 15374, 23061, 30748, 46122, 61496, 69183, 92244, 138366, 184488, 276732, 284419, 553464, 568838, 853257, 1137676, 1706514, 2275352, 2559771, 3413028, 5119542, 6826056, 10239084, 20478168]

約数ペア:

[(1, 20478168), (2, 10239084), (3, 6826056), (4, 5119542), (6, 3413028), (8, 2559771), (9, 2275352), (12, 1706514), (18, 1137676), (24, 853257), (36, 568838), (37, 553464), (72, 284419), (74, 276732), (111, 184488), (148, 138366), (222, 92244), (296, 69183), (333, 61496), (444, 46122), (666, 30748), (888, 23061), (1332, 15374), (2664, 7687)]