161271040

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:508

約数の個数: 144

約数和(自身を含む): 453277440

約数和(自身を除く): 292006400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 56, 64, 70, 80, 82, 112, 128, 140, 160, 164, 205, 224, 256, 280, 287, 320, 328, 410, 439, 448, 560, 574, 640, 656, 820, 878, 896, 1120, 1148, 1280, 1312, 1435, 1640, 1756, 1792, 2195, 2240, 2296, 2624, 2870, 3073, 3280, 3512, 4390, 4480, 4592, 5248, 5740, 6146, 6560, 7024, 8780, 8960, 9184, 10496, 11480, 12292, 13120, 14048, 15365, 17560, 17999, 18368, 22960, 24584, 26240, 28096, 30730, 35120, 35998, 36736, 45920, 49168, 52480, 56192, 61460, 70240, 71996, 73472, 89995, 91840, 98336, 112384, 122920, 125993, 140480, 143992, 179990, 183680, 196672, 245840, 251986, 280960, 287984, 359980, 367360, 393344, 491680, 503972, 561920, 575968, 629965, 719960, 786688, 983360, 1007944, 1151936, 1259930, 1439920, 1966720, 2015888, 2303872, 2519860, 2879840, 3933440, 4031776, 4607744, 5039720, 5759680, 8063552, 10079440, 11519360, 16127104, 20158880, 23038720, 32254208, 40317760, 80635520, 161271040]

約数ペア:

[(1, 161271040), (2, 80635520), (4, 40317760), (5, 32254208), (7, 23038720), (8, 20158880), (10, 16127104), (14, 11519360), (16, 10079440), (20, 8063552), (28, 5759680), (32, 5039720), (35, 4607744), (40, 4031776), (41, 3933440), (56, 2879840), (64, 2519860), (70, 2303872), (80, 2015888), (82, 1966720), (112, 1439920), (128, 1259930), (140, 1151936), (160, 1007944), (164, 983360), (205, 786688), (224, 719960), (256, 629965), (280, 575968), (287, 561920), (320, 503972), (328, 491680), (410, 393344), (439, 367360), (448, 359980), (560, 287984), (574, 280960), (640, 251986), (656, 245840), (820, 196672), (878, 183680), (896, 179990), (1120, 143992), (1148, 140480), (1280, 125993), (1312, 122920), (1435, 112384), (1640, 98336), (1756, 91840), (1792, 89995), (2195, 73472), (2240, 71996), (2296, 70240), (2624, 61460), (2870, 56192), (3073, 52480), (3280, 49168), (3512, 45920), (4390, 36736), (4480, 35998), (4592, 35120), (5248, 30730), (5740, 28096), (6146, 26240), (6560, 24584), (7024, 22960), (8780, 18368), (8960, 17999), (9184, 17560), (10496, 15365), (11480, 14048), (12292, 13120)]