164781820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{727}}^1\times {\mathrm{1619}}^1$

素因数の和:2362

約数の個数: 48

約数和(自身を含む): 396264960

約数和(自身を除く): 231483140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 727, 1454, 1619, 2908, 3238, 3635, 5089, 6476, 7270, 8095, 10178, 11333, 14540, 16190, 20356, 22666, 25445, 32380, 45332, 50890, 56665, 101780, 113330, 226660, 1177013, 2354026, 4708052, 5885065, 8239091, 11770130, 16478182, 23540260, 32956364, 41195455, 82390910, 164781820]

約数ペア:

[(1, 164781820), (2, 82390910), (4, 41195455), (5, 32956364), (7, 23540260), (10, 16478182), (14, 11770130), (20, 8239091), (28, 5885065), (35, 4708052), (70, 2354026), (140, 1177013), (727, 226660), (1454, 113330), (1619, 101780), (2908, 56665), (3238, 50890), (3635, 45332), (5089, 32380), (6476, 25445), (7270, 22666), (8095, 20356), (10178, 16190), (11333, 14540)]