21145080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:301

約数の個数: 128

約数和(自身を含む): 70398720

約数和(自身を除く): 49253640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 83, 88, 110, 120, 132, 165, 166, 193, 220, 249, 264, 330, 332, 386, 415, 440, 498, 579, 660, 664, 772, 830, 913, 965, 996, 1158, 1245, 1320, 1544, 1660, 1826, 1930, 1992, 2123, 2316, 2490, 2739, 2895, 3320, 3652, 3860, 4246, 4565, 4632, 4980, 5478, 5790, 6369, 7304, 7720, 8492, 9130, 9960, 10615, 10956, 11580, 12738, 13695, 16019, 16984, 18260, 21230, 21912, 23160, 25476, 27390, 31845, 32038, 36520, 42460, 48057, 50952, 54780, 63690, 64076, 80095, 84920, 96114, 109560, 127380, 128152, 160190, 176209, 192228, 240285, 254760, 320380, 352418, 384456, 480570, 528627, 640760, 704836, 881045, 961140, 1057254, 1409672, 1762090, 1922280, 2114508, 2643135, 3524180, 4229016, 5286270, 7048360, 10572540, 21145080]

約数ペア:

[(1, 21145080), (2, 10572540), (3, 7048360), (4, 5286270), (5, 4229016), (6, 3524180), (8, 2643135), (10, 2114508), (11, 1922280), (12, 1762090), (15, 1409672), (20, 1057254), (22, 961140), (24, 881045), (30, 704836), (33, 640760), (40, 528627), (44, 480570), (55, 384456), (60, 352418), (66, 320380), (83, 254760), (88, 240285), (110, 192228), (120, 176209), (132, 160190), (165, 128152), (166, 127380), (193, 109560), (220, 96114), (249, 84920), (264, 80095), (330, 64076), (332, 63690), (386, 54780), (415, 50952), (440, 48057), (498, 42460), (579, 36520), (660, 32038), (664, 31845), (772, 27390), (830, 25476), (913, 23160), (965, 21912), (996, 21230), (1158, 18260), (1245, 16984), (1320, 16019), (1544, 13695), (1660, 12738), (1826, 11580), (1930, 10956), (1992, 10615), (2123, 9960), (2316, 9130), (2490, 8492), (2739, 7720), (2895, 7304), (3320, 6369), (3652, 5790), (3860, 5478), (4246, 4980), (4565, 4632)]