20072080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{491}}^1$

素因数の和:584

約数の個数: 80

約数和(自身を含む): 54175104

約数和(自身を除く): 34103024

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 280, 292, 365, 491, 511, 560, 584, 730, 982, 1022, 1168, 1460, 1964, 2044, 2455, 2555, 2920, 3437, 3928, 4088, 4910, 5110, 5840, 6874, 7856, 8176, 9820, 10220, 13748, 17185, 19640, 20440, 27496, 34370, 35843, 39280, 40880, 54992, 68740, 71686, 137480, 143372, 179215, 250901, 274960, 286744, 358430, 501802, 573488, 716860, 1003604, 1254505, 1433720, 2007208, 2509010, 2867440, 4014416, 5018020, 10036040, 20072080]

約数ペア:

[(1, 20072080), (2, 10036040), (4, 5018020), (5, 4014416), (7, 2867440), (8, 2509010), (10, 2007208), (14, 1433720), (16, 1254505), (20, 1003604), (28, 716860), (35, 573488), (40, 501802), (56, 358430), (70, 286744), (73, 274960), (80, 250901), (112, 179215), (140, 143372), (146, 137480), (280, 71686), (292, 68740), (365, 54992), (491, 40880), (511, 39280), (560, 35843), (584, 34370), (730, 27496), (982, 20440), (1022, 19640), (1168, 17185), (1460, 13748), (1964, 10220), (2044, 9820), (2455, 8176), (2555, 7856), (2920, 6874), (3437, 5840), (3928, 5110), (4088, 4910)]