81310900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{383}}^1$

素因数の和:601

約数の個数: 72

約数和(自身を含む): 193987584

約数和(自身を除く): 112676684

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 193, 220, 275, 383, 386, 550, 766, 772, 965, 1100, 1532, 1915, 1930, 2123, 3830, 3860, 4213, 4246, 4825, 7660, 8426, 8492, 9575, 9650, 10615, 16852, 19150, 19300, 21065, 21230, 38300, 42130, 42460, 53075, 73919, 84260, 105325, 106150, 147838, 210650, 212300, 295676, 369595, 421300, 739190, 813109, 1478380, 1626218, 1847975, 3252436, 3695950, 4065545, 7391900, 8131090, 16262180, 20327725, 40655450, 81310900]

約数ペア:

[(1, 81310900), (2, 40655450), (4, 20327725), (5, 16262180), (10, 8131090), (11, 7391900), (20, 4065545), (22, 3695950), (25, 3252436), (44, 1847975), (50, 1626218), (55, 1478380), (100, 813109), (110, 739190), (193, 421300), (220, 369595), (275, 295676), (383, 212300), (386, 210650), (550, 147838), (766, 106150), (772, 105325), (965, 84260), (1100, 73919), (1532, 53075), (1915, 42460), (1930, 42130), (2123, 38300), (3830, 21230), (3860, 21065), (4213, 19300), (4246, 19150), (4825, 16852), (7660, 10615), (8426, 9650), (8492, 9575)]