20480250

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:157

約数の個数: 128

約数和(自身を含む): 60383232

約数和(自身を除く): 39902982

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 47, 50, 70, 75, 83, 94, 105, 125, 141, 150, 166, 175, 210, 235, 249, 250, 282, 329, 350, 375, 415, 470, 498, 525, 581, 658, 705, 750, 830, 875, 987, 1050, 1162, 1175, 1245, 1410, 1645, 1743, 1750, 1974, 2075, 2350, 2490, 2625, 2905, 3290, 3486, 3525, 3901, 4150, 4935, 5250, 5810, 5875, 6225, 7050, 7802, 8225, 8715, 9870, 10375, 11703, 11750, 12450, 14525, 16450, 17430, 17625, 19505, 20750, 23406, 24675, 27307, 29050, 31125, 35250, 39010, 41125, 43575, 49350, 54614, 58515, 62250, 72625, 81921, 82250, 87150, 97525, 117030, 123375, 136535, 145250, 163842, 195050, 217875, 246750, 273070, 292575, 409605, 435750, 487625, 585150, 682675, 819210, 975250, 1365350, 1462875, 2048025, 2925750, 3413375, 4096050, 6826750, 10240125, 20480250]

約数ペア:

[(1, 20480250), (2, 10240125), (3, 6826750), (5, 4096050), (6, 3413375), (7, 2925750), (10, 2048025), (14, 1462875), (15, 1365350), (21, 975250), (25, 819210), (30, 682675), (35, 585150), (42, 487625), (47, 435750), (50, 409605), (70, 292575), (75, 273070), (83, 246750), (94, 217875), (105, 195050), (125, 163842), (141, 145250), (150, 136535), (166, 123375), (175, 117030), (210, 97525), (235, 87150), (249, 82250), (250, 81921), (282, 72625), (329, 62250), (350, 58515), (375, 54614), (415, 49350), (470, 43575), (498, 41125), (525, 39010), (581, 35250), (658, 31125), (705, 29050), (750, 27307), (830, 24675), (875, 23406), (987, 20750), (1050, 19505), (1162, 17625), (1175, 17430), (1245, 16450), (1410, 14525), (1645, 12450), (1743, 11750), (1750, 11703), (1974, 10375), (2075, 9870), (2350, 8715), (2490, 8225), (2625, 7802), (2905, 7050), (3290, 6225), (3486, 5875), (3525, 5810), (3901, 5250), (4150, 4935)]