278537868

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{1105309}}^1$

素因数の和:1105326

約数の個数: 36

約数和(自身を含む): 804665680

約数和(自身を除く): 526127812

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 1105309, 2210618, 3315927, 4421236, 6631854, 7737163, 9947781, 13263708, 15474326, 19895562, 23211489, 30948652, 39791124, 46422978, 69634467, 92845956, 139268934, 278537868]

約数ペア:

[(1, 278537868), (2, 139268934), (3, 92845956), (4, 69634467), (6, 46422978), (7, 39791124), (9, 30948652), (12, 23211489), (14, 19895562), (18, 15474326), (21, 13263708), (28, 9947781), (36, 7737163), (42, 6631854), (63, 4421236), (84, 3315927), (126, 2210618), (252, 1105309)]