15515360

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{1979}}^1$

素因数の和:2008

約数の個数: 72

約数和(自身を含む): 42661080

約数和(自身を除く): 27145720

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, 1979, 3920, 3958, 7840, 7916, 9895, 13853, 15832, 19790, 27706, 31664, 39580, 55412, 63328, 69265, 79160, 96971, 110824, 138530, 158320, 193942, 221648, 277060, 316640, 387884, 443296, 484855, 554120, 775768, 969710, 1108240, 1551536, 1939420, 2216480, 3103072, 3878840, 7757680, 15515360]

約数ペア:

[(1, 15515360), (2, 7757680), (4, 3878840), (5, 3103072), (7, 2216480), (8, 1939420), (10, 1551536), (14, 1108240), (16, 969710), (20, 775768), (28, 554120), (32, 484855), (35, 443296), (40, 387884), (49, 316640), (56, 277060), (70, 221648), (80, 193942), (98, 158320), (112, 138530), (140, 110824), (160, 96971), (196, 79160), (224, 69265), (245, 63328), (280, 55412), (392, 39580), (490, 31664), (560, 27706), (784, 19790), (980, 15832), (1120, 13853), (1568, 9895), (1960, 7916), (1979, 7840), (3920, 3958)]