20149383760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{532489}}^1$

素因数の和:532556

約数の個数: 80

約数和(自身を含む): 52294777920

約数和(自身を除く): 32145394160

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 860, 880, 946, 1720, 1892, 2365, 3440, 3784, 4730, 7568, 9460, 18920, 37840, 532489, 1064978, 2129956, 2662445, 4259912, 5324890, 5857379, 8519824, 10649780, 11714758, 21299560, 22897027, 23429516, 29286895, 42599120, 45794054, 46859032, 58573790, 91588108, 93718064, 114485135, 117147580, 183176216, 228970270, 234295160, 251867297, 366352432, 457940540, 468590320, 503734594, 915881080, 1007469188, 1259336485, 1831762160, 2014938376, 2518672970, 4029876752, 5037345940, 10074691880, 20149383760]

約数ペア:

[(1, 20149383760), (2, 10074691880), (4, 5037345940), (5, 4029876752), (8, 2518672970), (10, 2014938376), (11, 1831762160), (16, 1259336485), (20, 1007469188), (22, 915881080), (40, 503734594), (43, 468590320), (44, 457940540), (55, 366352432), (80, 251867297), (86, 234295160), (88, 228970270), (110, 183176216), (172, 117147580), (176, 114485135), (215, 93718064), (220, 91588108), (344, 58573790), (430, 46859032), (440, 45794054), (473, 42599120), (688, 29286895), (860, 23429516), (880, 22897027), (946, 21299560), (1720, 11714758), (1892, 10649780), (2365, 8519824), (3440, 5857379), (3784, 5324890), (4730, 4259912), (7568, 2662445), (9460, 2129956), (18920, 1064978), (37840, 532489)]