278380438

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{7639}}^1$

素因数の和:7804

約数の個数: 32

約数和(自身を含む): 506073600

約数和(自身を除く): 227693162

約数列:

[1, 2, 7, 14, 19, 38, 133, 137, 266, 274, 959, 1918, 2603, 5206, 7639, 15278, 18221, 36442, 53473, 106946, 145141, 290282, 1015987, 1046543, 2031974, 2093086, 7325801, 14651602, 19884317, 39768634, 139190219, 278380438]

約数ペア:

[(1, 278380438), (2, 139190219), (7, 39768634), (14, 19884317), (19, 14651602), (38, 7325801), (133, 2093086), (137, 2031974), (266, 1046543), (274, 1015987), (959, 290282), (1918, 145141), (2603, 106946), (5206, 53473), (7639, 36442), (15278, 18221)]