123663260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{257}}^1\times {\mathrm{491}}^1$

素因数の和:771

約数の個数: 72

約数和(自身を含む): 303884784

約数和(自身を除く): 180221524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 257, 490, 491, 514, 980, 982, 1028, 1285, 1799, 1964, 2455, 2570, 3437, 3598, 4910, 5140, 6874, 7196, 8995, 9820, 12593, 13748, 17185, 17990, 24059, 25186, 34370, 35980, 48118, 50372, 62965, 68740, 96236, 120295, 125930, 126187, 240590, 251860, 252374, 481180, 504748, 630935, 883309, 1261870, 1766618, 2523740, 3533236, 4416545, 6183163, 8833090, 12366326, 17666180, 24732652, 30915815, 61831630, 123663260]

約数ペア:

[(1, 123663260), (2, 61831630), (4, 30915815), (5, 24732652), (7, 17666180), (10, 12366326), (14, 8833090), (20, 6183163), (28, 4416545), (35, 3533236), (49, 2523740), (70, 1766618), (98, 1261870), (140, 883309), (196, 630935), (245, 504748), (257, 481180), (490, 252374), (491, 251860), (514, 240590), (980, 126187), (982, 125930), (1028, 120295), (1285, 96236), (1799, 68740), (1964, 62965), (2455, 50372), (2570, 48118), (3437, 35980), (3598, 34370), (4910, 25186), (5140, 24059), (6874, 17990), (7196, 17185), (8995, 13748), (9820, 12593)]