156185540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{809}}^1$

素因数の和:1029

約数の個数: 72

約数和(自身を含む): 383949720

約数和(自身を除く): 227764180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 197, 245, 394, 490, 788, 809, 980, 985, 1379, 1618, 1970, 2758, 3236, 3940, 4045, 5516, 5663, 6895, 8090, 9653, 11326, 13790, 16180, 19306, 22652, 27580, 28315, 38612, 39641, 48265, 56630, 79282, 96530, 113260, 158564, 159373, 193060, 198205, 318746, 396410, 637492, 792820, 796865, 1115611, 1593730, 2231222, 3187460, 4462444, 5578055, 7809277, 11156110, 15618554, 22312220, 31237108, 39046385, 78092770, 156185540]

約数ペア:

[(1, 156185540), (2, 78092770), (4, 39046385), (5, 31237108), (7, 22312220), (10, 15618554), (14, 11156110), (20, 7809277), (28, 5578055), (35, 4462444), (49, 3187460), (70, 2231222), (98, 1593730), (140, 1115611), (196, 796865), (197, 792820), (245, 637492), (394, 396410), (490, 318746), (788, 198205), (809, 193060), (980, 159373), (985, 158564), (1379, 113260), (1618, 96530), (1970, 79282), (2758, 56630), (3236, 48265), (3940, 39641), (4045, 38612), (5516, 28315), (5663, 27580), (6895, 22652), (8090, 19306), (9653, 16180), (11326, 13790)]