19947070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:110

約数の個数: 96

約数和(自身を含む): 45061920

約数和(自身を除く): 25114850

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 29, 37, 55, 58, 65, 74, 110, 130, 143, 145, 169, 185, 286, 290, 319, 338, 370, 377, 407, 481, 638, 715, 754, 814, 845, 962, 1073, 1430, 1595, 1690, 1859, 1885, 2035, 2146, 2405, 3190, 3718, 3770, 4070, 4147, 4810, 4901, 5291, 5365, 6253, 8294, 9295, 9802, 10582, 10730, 11803, 12506, 13949, 18590, 20735, 23606, 24505, 26455, 27898, 31265, 41470, 49010, 52910, 53911, 59015, 62530, 68783, 69745, 107822, 118030, 137566, 139490, 153439, 181337, 269555, 306878, 343915, 362674, 539110, 687830, 767195, 906685, 1534390, 1813370, 1994707, 3989414, 9973535, 19947070]

約数ペア:

[(1, 19947070), (2, 9973535), (5, 3989414), (10, 1994707), (11, 1813370), (13, 1534390), (22, 906685), (26, 767195), (29, 687830), (37, 539110), (55, 362674), (58, 343915), (65, 306878), (74, 269555), (110, 181337), (130, 153439), (143, 139490), (145, 137566), (169, 118030), (185, 107822), (286, 69745), (290, 68783), (319, 62530), (338, 59015), (370, 53911), (377, 52910), (407, 49010), (481, 41470), (638, 31265), (715, 27898), (754, 26455), (814, 24505), (845, 23606), (962, 20735), (1073, 18590), (1430, 13949), (1595, 12506), (1690, 11803), (1859, 10730), (1885, 10582), (2035, 9802), (2146, 9295), (2405, 8294), (3190, 6253), (3718, 5365), (3770, 5291), (4070, 4901), (4147, 4810)]