20406411080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{165047}}^1$

素因数の和:165350

約数の個数: 64

約数和(自身を含む): 50267018880

約数和(自身を除く): 29860607800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 281, 440, 562, 1124, 1405, 2248, 2810, 3091, 5620, 6182, 11240, 12364, 15455, 24728, 30910, 61820, 123640, 165047, 330094, 660188, 825235, 1320376, 1650470, 1815517, 3300940, 3631034, 6601880, 7262068, 9077585, 14524136, 18155170, 36310340, 46378207, 72620680, 92756414, 185512828, 231891035, 371025656, 463782070, 510160277, 927564140, 1020320554, 1855128280, 2040641108, 2550801385, 4081282216, 5101602770, 10203205540, 20406411080]

約数ペア:

[(1, 20406411080), (2, 10203205540), (4, 5101602770), (5, 4081282216), (8, 2550801385), (10, 2040641108), (11, 1855128280), (20, 1020320554), (22, 927564140), (40, 510160277), (44, 463782070), (55, 371025656), (88, 231891035), (110, 185512828), (220, 92756414), (281, 72620680), (440, 46378207), (562, 36310340), (1124, 18155170), (1405, 14524136), (2248, 9077585), (2810, 7262068), (3091, 6601880), (5620, 3631034), (6182, 3300940), (11240, 1815517), (12364, 1650470), (15455, 1320376), (24728, 825235), (30910, 660188), (61820, 330094), (123640, 165047)]