390675040

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{49831}}^1$

素因数の和:49860

約数の個数: 72

約数和(自身を含む): 1073680272

約数和(自身を除く): 683005232

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 49831, 99662, 199324, 249155, 348817, 398648, 498310, 697634, 797296, 996620, 1395268, 1594592, 1744085, 1993240, 2441719, 2790536, 3488170, 3986480, 4883438, 5581072, 6976340, 7972960, 9766876, 11162144, 12208595, 13952680, 19533752, 24417190, 27905360, 39067504, 48834380, 55810720, 78135008, 97668760, 195337520, 390675040]

約数ペア:

[(1, 390675040), (2, 195337520), (4, 97668760), (5, 78135008), (7, 55810720), (8, 48834380), (10, 39067504), (14, 27905360), (16, 24417190), (20, 19533752), (28, 13952680), (32, 12208595), (35, 11162144), (40, 9766876), (49, 7972960), (56, 6976340), (70, 5581072), (80, 4883438), (98, 3986480), (112, 3488170), (140, 2790536), (160, 2441719), (196, 1993240), (224, 1744085), (245, 1594592), (280, 1395268), (392, 996620), (490, 797296), (560, 697634), (784, 498310), (980, 398648), (1120, 348817), (1568, 249155), (1960, 199324), (3920, 99662), (7840, 49831)]