30909920

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3167}}^1$

素因数の和:3243

約数の個数: 48

約数和(自身を含む): 74245248

約数和(自身を除く): 43335328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1952, 2440, 3167, 4880, 6334, 9760, 12668, 15835, 25336, 31670, 50672, 63340, 101344, 126680, 193187, 253360, 386374, 506720, 772748, 965935, 1545496, 1931870, 3090992, 3863740, 6181984, 7727480, 15454960, 30909920]

約数ペア:

[(1, 30909920), (2, 15454960), (4, 7727480), (5, 6181984), (8, 3863740), (10, 3090992), (16, 1931870), (20, 1545496), (32, 965935), (40, 772748), (61, 506720), (80, 386374), (122, 253360), (160, 193187), (244, 126680), (305, 101344), (488, 63340), (610, 50672), (976, 31670), (1220, 25336), (1952, 15835), (2440, 12668), (3167, 9760), (4880, 6334)]