1689128

素因数分解:

$2^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 3830400

約数和(自身を除く): 2141272

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 49, 56, 62, 98, 124, 139, 196, 217, 248, 278, 392, 434, 556, 868, 973, 1112, 1519, 1736, 1946, 3038, 3892, 4309, 6076, 6811, 7784, 8618, 12152, 13622, 17236, 27244, 30163, 34472, 54488, 60326, 120652, 211141, 241304, 422282, 844564, 1689128]

約数ペア:

[(1, 1689128), (2, 844564), (4, 422282), (7, 241304), (8, 211141), (14, 120652), (28, 60326), (31, 54488), (49, 34472), (56, 30163), (62, 27244), (98, 17236), (124, 13622), (139, 12152), (196, 8618), (217, 7784), (248, 6811), (278, 6076), (392, 4309), (434, 3892), (556, 3038), (868, 1946), (973, 1736), (1112, 1519)]