78321990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{439}}^1$

素因数の和:781

約数の個数: 64

約数和(自身を含む): 198950400

約数和(自身を除く): 120628410

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 285, 313, 439, 570, 626, 878, 939, 1317, 1565, 1878, 2195, 2634, 3130, 4390, 4695, 5947, 6585, 8341, 9390, 11894, 13170, 16682, 17841, 25023, 29735, 35682, 41705, 50046, 59470, 83410, 89205, 125115, 137407, 178410, 250230, 274814, 412221, 687035, 824442, 1374070, 2061105, 2610733, 4122210, 5221466, 7832199, 13053665, 15664398, 26107330, 39160995, 78321990]

約数ペア:

[(1, 78321990), (2, 39160995), (3, 26107330), (5, 15664398), (6, 13053665), (10, 7832199), (15, 5221466), (19, 4122210), (30, 2610733), (38, 2061105), (57, 1374070), (95, 824442), (114, 687035), (190, 412221), (285, 274814), (313, 250230), (439, 178410), (570, 137407), (626, 125115), (878, 89205), (939, 83410), (1317, 59470), (1565, 50046), (1878, 41705), (2195, 35682), (2634, 29735), (3130, 25023), (4390, 17841), (4695, 16682), (5947, 13170), (6585, 11894), (8341, 9390)]