20688360

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2239}}^1$

素因数の和:2271

約数の個数: 128

約数和(自身を含む): 77414400

約数和(自身を除く): 56726040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2239, 2310, 3080, 4478, 4620, 6717, 8956, 9240, 11195, 13434, 15673, 17912, 22390, 24629, 26868, 31346, 33585, 44780, 47019, 49258, 53736, 62692, 67170, 73887, 78365, 89560, 94038, 98516, 123145, 125384, 134340, 147774, 156730, 172403, 188076, 197032, 235095, 246290, 268680, 295548, 313460, 344806, 369435, 376152, 470190, 492580, 517209, 591096, 626920, 689612, 738870, 862015, 940380, 985160, 1034418, 1379224, 1477740, 1724030, 1880760, 2068836, 2586045, 2955480, 3448060, 4137672, 5172090, 6896120, 10344180, 20688360]

約数ペア:

[(1, 20688360), (2, 10344180), (3, 6896120), (4, 5172090), (5, 4137672), (6, 3448060), (7, 2955480), (8, 2586045), (10, 2068836), (11, 1880760), (12, 1724030), (14, 1477740), (15, 1379224), (20, 1034418), (21, 985160), (22, 940380), (24, 862015), (28, 738870), (30, 689612), (33, 626920), (35, 591096), (40, 517209), (42, 492580), (44, 470190), (55, 376152), (56, 369435), (60, 344806), (66, 313460), (70, 295548), (77, 268680), (84, 246290), (88, 235095), (105, 197032), (110, 188076), (120, 172403), (132, 156730), (140, 147774), (154, 134340), (165, 125384), (168, 123145), (210, 98516), (220, 94038), (231, 89560), (264, 78365), (280, 73887), (308, 67170), (330, 62692), (385, 53736), (420, 49258), (440, 47019), (462, 44780), (616, 33585), (660, 31346), (770, 26868), (840, 24629), (924, 22390), (1155, 17912), (1320, 15673), (1540, 13434), (1848, 11195), (2239, 9240), (2310, 8956), (3080, 6717), (4478, 4620)]