20805941380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{30661}}^1$

素因数の和:30845

約数の個数: 96

約数和(自身を含む): 51676998912

約数和(自身を除く): 30871057532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 131, 140, 148, 185, 259, 262, 370, 518, 524, 655, 740, 917, 1036, 1295, 1310, 1834, 2590, 2620, 3668, 4585, 4847, 5180, 9170, 9694, 18340, 19388, 24235, 30661, 33929, 48470, 61322, 67858, 96940, 122644, 135716, 153305, 169645, 214627, 306610, 339290, 429254, 613220, 678580, 858508, 1073135, 1134457, 2146270, 2268914, 4016591, 4292540, 4537828, 5672285, 7941199, 8033182, 11344570, 15882398, 16066364, 20082955, 22689140, 28116137, 31764796, 39705995, 40165910, 56232274, 79411990, 80331820, 112464548, 140580685, 148613867, 158823980, 281161370, 297227734, 562322740, 594455468, 743069335, 1040297069, 1486138670, 2080594138, 2972277340, 4161188276, 5201485345, 10402970690, 20805941380]

約数ペア:

[(1, 20805941380), (2, 10402970690), (4, 5201485345), (5, 4161188276), (7, 2972277340), (10, 2080594138), (14, 1486138670), (20, 1040297069), (28, 743069335), (35, 594455468), (37, 562322740), (70, 297227734), (74, 281161370), (131, 158823980), (140, 148613867), (148, 140580685), (185, 112464548), (259, 80331820), (262, 79411990), (370, 56232274), (518, 40165910), (524, 39705995), (655, 31764796), (740, 28116137), (917, 22689140), (1036, 20082955), (1295, 16066364), (1310, 15882398), (1834, 11344570), (2590, 8033182), (2620, 7941199), (3668, 5672285), (4585, 4537828), (4847, 4292540), (5180, 4016591), (9170, 2268914), (9694, 2146270), (18340, 1134457), (19388, 1073135), (24235, 858508), (30661, 678580), (33929, 613220), (48470, 429254), (61322, 339290), (67858, 306610), (96940, 214627), (122644, 169645), (135716, 153305)]