13408640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:140

約数の個数: 128

約数和(自身を含む): 38041920

約数和(自身を除く): 24633280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 56, 64, 70, 73, 80, 82, 112, 128, 140, 146, 160, 164, 205, 224, 280, 287, 292, 320, 328, 365, 410, 448, 511, 560, 574, 584, 640, 656, 730, 820, 896, 1022, 1120, 1148, 1168, 1312, 1435, 1460, 1640, 2044, 2240, 2296, 2336, 2555, 2624, 2870, 2920, 2993, 3280, 4088, 4480, 4592, 4672, 5110, 5248, 5740, 5840, 5986, 6560, 8176, 9184, 9344, 10220, 11480, 11680, 11972, 13120, 14965, 16352, 18368, 20440, 20951, 22960, 23360, 23944, 26240, 29930, 32704, 36736, 40880, 41902, 45920, 46720, 47888, 59860, 65408, 81760, 83804, 91840, 95776, 104755, 119720, 163520, 167608, 183680, 191552, 209510, 239440, 327040, 335216, 383104, 419020, 478880, 670432, 838040, 957760, 1340864, 1676080, 1915520, 2681728, 3352160, 6704320, 13408640]

約数ペア:

[(1, 13408640), (2, 6704320), (4, 3352160), (5, 2681728), (7, 1915520), (8, 1676080), (10, 1340864), (14, 957760), (16, 838040), (20, 670432), (28, 478880), (32, 419020), (35, 383104), (40, 335216), (41, 327040), (56, 239440), (64, 209510), (70, 191552), (73, 183680), (80, 167608), (82, 163520), (112, 119720), (128, 104755), (140, 95776), (146, 91840), (160, 83804), (164, 81760), (205, 65408), (224, 59860), (280, 47888), (287, 46720), (292, 45920), (320, 41902), (328, 40880), (365, 36736), (410, 32704), (448, 29930), (511, 26240), (560, 23944), (574, 23360), (584, 22960), (640, 20951), (656, 20440), (730, 18368), (820, 16352), (896, 14965), (1022, 13120), (1120, 11972), (1148, 11680), (1168, 11480), (1312, 10220), (1435, 9344), (1460, 9184), (1640, 8176), (2044, 6560), (2240, 5986), (2296, 5840), (2336, 5740), (2555, 5248), (2624, 5110), (2870, 4672), (2920, 4592), (2993, 4480), (3280, 4088)]