20326900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1087}}^1$

素因数の和:1129

約数の個数: 72

約数和(自身を含む): 50996736

約数和(自身を除く): 30669836

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 34, 44, 50, 55, 68, 85, 100, 110, 170, 187, 220, 275, 340, 374, 425, 550, 748, 850, 935, 1087, 1100, 1700, 1870, 2174, 3740, 4348, 4675, 5435, 9350, 10870, 11957, 18479, 18700, 21740, 23914, 27175, 36958, 47828, 54350, 59785, 73916, 92395, 108700, 119570, 184790, 203269, 239140, 298925, 369580, 406538, 461975, 597850, 813076, 923950, 1016345, 1195700, 1847900, 2032690, 4065380, 5081725, 10163450, 20326900]

約数ペア:

[(1, 20326900), (2, 10163450), (4, 5081725), (5, 4065380), (10, 2032690), (11, 1847900), (17, 1195700), (20, 1016345), (22, 923950), (25, 813076), (34, 597850), (44, 461975), (50, 406538), (55, 369580), (68, 298925), (85, 239140), (100, 203269), (110, 184790), (170, 119570), (187, 108700), (220, 92395), (275, 73916), (340, 59785), (374, 54350), (425, 47828), (550, 36958), (748, 27175), (850, 23914), (935, 21740), (1087, 18700), (1100, 18479), (1700, 11957), (1870, 10870), (2174, 9350), (3740, 5435), (4348, 4675)]