638519868

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{844603}}^1$

素因数の和:844623

約数の個数: 48

約数和(自身を含む): 1891912960

約数和(自身を除く): 1253393092

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 844603, 1689206, 2533809, 3378412, 5067618, 5912221, 7601427, 10135236, 11824442, 15202854, 17736663, 22804281, 23648884, 30405708, 35473326, 45608562, 53209989, 70946652, 91217124, 106419978, 159629967, 212839956, 319259934, 638519868]

約数ペア:

[(1, 638519868), (2, 319259934), (3, 212839956), (4, 159629967), (6, 106419978), (7, 91217124), (9, 70946652), (12, 53209989), (14, 45608562), (18, 35473326), (21, 30405708), (27, 23648884), (28, 22804281), (36, 17736663), (42, 15202854), (54, 11824442), (63, 10135236), (84, 7601427), (108, 5912221), (126, 5067618), (189, 3378412), (252, 2533809), (378, 1689206), (756, 844603)]