639544848

素因数分解:

$2^4\times 3^1\times {\mathrm{43}}^1\times {\mathrm{309857}}^1$

素因数の和:309911

約数の個数: 40

約数和(自身を含む): 1690585248

約数和(自身を除く): 1051040400

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 43, 48, 86, 129, 172, 258, 344, 516, 688, 1032, 2064, 309857, 619714, 929571, 1239428, 1859142, 2478856, 3718284, 4957712, 7436568, 13323851, 14873136, 26647702, 39971553, 53295404, 79943106, 106590808, 159886212, 213181616, 319772424, 639544848]

約数ペア:

[(1, 639544848), (2, 319772424), (3, 213181616), (4, 159886212), (6, 106590808), (8, 79943106), (12, 53295404), (16, 39971553), (24, 26647702), (43, 14873136), (48, 13323851), (86, 7436568), (129, 4957712), (172, 3718284), (258, 2478856), (344, 1859142), (516, 1239428), (688, 929571), (1032, 619714), (2064, 309857)]