20281800

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1$

素因数の和:476

約数の個数: 192

約数和(自身を含む): 78566400

約数和(自身を除く): 58284600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 25, 28, 30, 33, 35, 40, 42, 44, 50, 55, 56, 60, 66, 70, 75, 77, 84, 88, 100, 105, 110, 120, 132, 140, 150, 154, 165, 168, 175, 200, 210, 220, 231, 264, 275, 280, 300, 308, 330, 350, 385, 420, 439, 440, 462, 525, 550, 600, 616, 660, 700, 770, 825, 840, 878, 924, 1050, 1100, 1155, 1317, 1320, 1400, 1540, 1650, 1756, 1848, 1925, 2100, 2195, 2200, 2310, 2634, 3073, 3080, 3300, 3512, 3850, 4200, 4390, 4620, 4829, 5268, 5775, 6146, 6585, 6600, 7700, 8780, 9219, 9240, 9658, 10536, 10975, 11550, 12292, 13170, 14487, 15365, 15400, 17560, 18438, 19316, 21950, 23100, 24145, 24584, 26340, 28974, 30730, 32925, 33803, 36876, 38632, 43900, 46095, 46200, 48290, 52680, 57948, 61460, 65850, 67606, 72435, 73752, 76825, 87800, 92190, 96580, 101409, 115896, 120725, 122920, 131700, 135212, 144870, 153650, 169015, 184380, 193160, 202818, 230475, 241450, 263400, 270424, 289740, 307300, 338030, 362175, 368760, 405636, 460950, 482900, 507045, 579480, 614600, 676060, 724350, 811272, 845075, 921900, 965800, 1014090, 1352120, 1448700, 1690150, 1843800, 2028180, 2535225, 2897400, 3380300, 4056360, 5070450, 6760600, 10140900, 20281800]

約数ペア:

[(1, 20281800), (2, 10140900), (3, 6760600), (4, 5070450), (5, 4056360), (6, 3380300), (7, 2897400), (8, 2535225), (10, 2028180), (11, 1843800), (12, 1690150), (14, 1448700), (15, 1352120), (20, 1014090), (21, 965800), (22, 921900), (24, 845075), (25, 811272), (28, 724350), (30, 676060), (33, 614600), (35, 579480), (40, 507045), (42, 482900), (44, 460950), (50, 405636), (55, 368760), (56, 362175), (60, 338030), (66, 307300), (70, 289740), (75, 270424), (77, 263400), (84, 241450), (88, 230475), (100, 202818), (105, 193160), (110, 184380), (120, 169015), (132, 153650), (140, 144870), (150, 135212), (154, 131700), (165, 122920), (168, 120725), (175, 115896), (200, 101409), (210, 96580), (220, 92190), (231, 87800), (264, 76825), (275, 73752), (280, 72435), (300, 67606), (308, 65850), (330, 61460), (350, 57948), (385, 52680), (420, 48290), (439, 46200), (440, 46095), (462, 43900), (525, 38632), (550, 36876), (600, 33803), (616, 32925), (660, 30730), (700, 28974), (770, 26340), (825, 24584), (840, 24145), (878, 23100), (924, 21950), (1050, 19316), (1100, 18438), (1155, 17560), (1317, 15400), (1320, 15365), (1400, 14487), (1540, 13170), (1650, 12292), (1756, 11550), (1848, 10975), (1925, 10536), (2100, 9658), (2195, 9240), (2200, 9219), (2310, 8780), (2634, 7700), (3073, 6600), (3080, 6585), (3300, 6146), (3512, 5775), (3850, 5268), (4200, 4829), (4390, 4620)]