199920294680

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2243}}^1\times {\mathrm{36529}}^1$

素因数の和:38844

約数の個数: 64

約数和(自身を含む): 457411125600

約数和(自身を除く): 257490830920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2243, 2440, 4486, 8972, 11215, 17944, 22430, 36529, 44860, 73058, 89720, 136823, 146116, 182645, 273646, 292232, 365290, 547292, 684115, 730580, 1094584, 1368230, 1461160, 2228269, 2736460, 4456538, 5472920, 8913076, 11141345, 17826152, 22282690, 44565380, 81934547, 89130760, 163869094, 327738188, 409672735, 655476376, 819345470, 1638690940, 3277381880, 4998007367, 9996014734, 19992029468, 24990036835, 39984058936, 49980073670, 99960147340, 199920294680]

約数ペア:

[(1, 199920294680), (2, 99960147340), (4, 49980073670), (5, 39984058936), (8, 24990036835), (10, 19992029468), (20, 9996014734), (40, 4998007367), (61, 3277381880), (122, 1638690940), (244, 819345470), (305, 655476376), (488, 409672735), (610, 327738188), (1220, 163869094), (2243, 89130760), (2440, 81934547), (4486, 44565380), (8972, 22282690), (11215, 17826152), (17944, 11141345), (22430, 8913076), (36529, 5472920), (44860, 4456538), (73058, 2736460), (89720, 2228269), (136823, 1461160), (146116, 1368230), (182645, 1094584), (273646, 730580), (292232, 684115), (365290, 547292)]