21884160

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 72112320

約数和(自身を除く): 50228160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 64, 80, 82, 96, 120, 123, 128, 139, 160, 164, 192, 205, 240, 246, 256, 278, 320, 328, 384, 410, 417, 480, 492, 556, 615, 640, 656, 695, 768, 820, 834, 960, 984, 1112, 1230, 1280, 1312, 1390, 1640, 1668, 1920, 1968, 2085, 2224, 2460, 2624, 2780, 3280, 3336, 3840, 3936, 4170, 4448, 4920, 5248, 5560, 5699, 6560, 6672, 7872, 8340, 8896, 9840, 10496, 11120, 11398, 13120, 13344, 15744, 16680, 17097, 17792, 19680, 22240, 22796, 26240, 26688, 28495, 31488, 33360, 34194, 35584, 39360, 44480, 45592, 52480, 53376, 56990, 66720, 68388, 78720, 85485, 88960, 91184, 106752, 113980, 133440, 136776, 157440, 170970, 177920, 182368, 227960, 266880, 273552, 341940, 364736, 455920, 533760, 547104, 683880, 729472, 911840, 1094208, 1367760, 1458944, 1823680, 2188416, 2735520, 3647360, 4376832, 5471040, 7294720, 10942080, 21884160]

約数ペア:

[(1, 21884160), (2, 10942080), (3, 7294720), (4, 5471040), (5, 4376832), (6, 3647360), (8, 2735520), (10, 2188416), (12, 1823680), (15, 1458944), (16, 1367760), (20, 1094208), (24, 911840), (30, 729472), (32, 683880), (40, 547104), (41, 533760), (48, 455920), (60, 364736), (64, 341940), (80, 273552), (82, 266880), (96, 227960), (120, 182368), (123, 177920), (128, 170970), (139, 157440), (160, 136776), (164, 133440), (192, 113980), (205, 106752), (240, 91184), (246, 88960), (256, 85485), (278, 78720), (320, 68388), (328, 66720), (384, 56990), (410, 53376), (417, 52480), (480, 45592), (492, 44480), (556, 39360), (615, 35584), (640, 34194), (656, 33360), (695, 31488), (768, 28495), (820, 26688), (834, 26240), (960, 22796), (984, 22240), (1112, 19680), (1230, 17792), (1280, 17097), (1312, 16680), (1390, 15744), (1640, 13344), (1668, 13120), (1920, 11398), (1968, 11120), (2085, 10496), (2224, 9840), (2460, 8896), (2624, 8340), (2780, 7872), (3280, 6672), (3336, 6560), (3840, 5699), (3936, 5560), (4170, 5248), (4448, 4920)]