20282880

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:184

約数の個数: 160

約数和(自身を含む): 68745600

約数和(自身を除く): 48462720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 64, 76, 80, 95, 96, 114, 120, 128, 139, 152, 160, 190, 192, 228, 240, 256, 278, 285, 304, 320, 380, 384, 417, 456, 480, 512, 556, 570, 608, 640, 695, 760, 768, 834, 912, 960, 1112, 1140, 1216, 1280, 1390, 1520, 1536, 1668, 1824, 1920, 2085, 2224, 2280, 2432, 2560, 2641, 2780, 3040, 3336, 3648, 3840, 4170, 4448, 4560, 4864, 5282, 5560, 6080, 6672, 7296, 7680, 7923, 8340, 8896, 9120, 9728, 10564, 11120, 12160, 13205, 13344, 14592, 15846, 16680, 17792, 18240, 21128, 22240, 24320, 26410, 26688, 29184, 31692, 33360, 35584, 36480, 39615, 42256, 44480, 48640, 52820, 53376, 63384, 66720, 71168, 72960, 79230, 84512, 88960, 105640, 106752, 126768, 133440, 145920, 158460, 169024, 177920, 211280, 213504, 253536, 266880, 316920, 338048, 355840, 422560, 507072, 533760, 633840, 676096, 845120, 1014144, 1067520, 1267680, 1352192, 1690240, 2028288, 2535360, 3380480, 4056576, 5070720, 6760960, 10141440, 20282880]

約数ペア:

[(1, 20282880), (2, 10141440), (3, 6760960), (4, 5070720), (5, 4056576), (6, 3380480), (8, 2535360), (10, 2028288), (12, 1690240), (15, 1352192), (16, 1267680), (19, 1067520), (20, 1014144), (24, 845120), (30, 676096), (32, 633840), (38, 533760), (40, 507072), (48, 422560), (57, 355840), (60, 338048), (64, 316920), (76, 266880), (80, 253536), (95, 213504), (96, 211280), (114, 177920), (120, 169024), (128, 158460), (139, 145920), (152, 133440), (160, 126768), (190, 106752), (192, 105640), (228, 88960), (240, 84512), (256, 79230), (278, 72960), (285, 71168), (304, 66720), (320, 63384), (380, 53376), (384, 52820), (417, 48640), (456, 44480), (480, 42256), (512, 39615), (556, 36480), (570, 35584), (608, 33360), (640, 31692), (695, 29184), (760, 26688), (768, 26410), (834, 24320), (912, 22240), (960, 21128), (1112, 18240), (1140, 17792), (1216, 16680), (1280, 15846), (1390, 14592), (1520, 13344), (1536, 13205), (1668, 12160), (1824, 11120), (1920, 10564), (2085, 9728), (2224, 9120), (2280, 8896), (2432, 8340), (2560, 7923), (2641, 7680), (2780, 7296), (3040, 6672), (3336, 6080), (3648, 5560), (3840, 5282), (4170, 4864), (4448, 4560)]