639663444

素因数分解:

$2^2\times 3^2\times 7^3\times {\mathrm{51803}}^1$

素因数の和:51834

約数の個数: 72

約数和(自身を含む): 1885665600

約数和(自身を除く): 1246002156

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 343, 441, 588, 686, 882, 1029, 1372, 1764, 2058, 3087, 4116, 6174, 12348, 51803, 103606, 155409, 207212, 310818, 362621, 466227, 621636, 725242, 932454, 1087863, 1450484, 1864908, 2175726, 2538347, 3263589, 4351452, 5076694, 6527178, 7615041, 10153388, 13054356, 15230082, 17768429, 22845123, 30460164, 35536858, 45690246, 53305287, 71073716, 91380492, 106610574, 159915861, 213221148, 319831722, 639663444]

約数ペア:

[(1, 639663444), (2, 319831722), (3, 213221148), (4, 159915861), (6, 106610574), (7, 91380492), (9, 71073716), (12, 53305287), (14, 45690246), (18, 35536858), (21, 30460164), (28, 22845123), (36, 17768429), (42, 15230082), (49, 13054356), (63, 10153388), (84, 7615041), (98, 6527178), (126, 5076694), (147, 4351452), (196, 3263589), (252, 2538347), (294, 2175726), (343, 1864908), (441, 1450484), (588, 1087863), (686, 932454), (882, 725242), (1029, 621636), (1372, 466227), (1764, 362621), (2058, 310818), (3087, 207212), (4116, 155409), (6174, 103606), (12348, 51803)]