320139976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{911}}^1$

素因数の和:1070

約数の個数: 64

約数和(自身を含む): 674150400

約数和(自身を除く): 354010424

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 109, 124, 218, 248, 403, 436, 806, 872, 911, 1417, 1612, 1822, 2834, 3224, 3379, 3644, 5668, 6758, 7288, 11336, 11843, 13516, 23686, 27032, 28241, 43927, 47372, 56482, 87854, 94744, 99299, 112964, 175708, 198598, 225928, 351416, 367133, 397196, 734266, 794392, 1290887, 1468532, 2581774, 2937064, 3078269, 5163548, 6156538, 10327096, 12313076, 24626152, 40017497, 80034994, 160069988, 320139976]

約数ペア:

[(1, 320139976), (2, 160069988), (4, 80034994), (8, 40017497), (13, 24626152), (26, 12313076), (31, 10327096), (52, 6156538), (62, 5163548), (104, 3078269), (109, 2937064), (124, 2581774), (218, 1468532), (248, 1290887), (403, 794392), (436, 734266), (806, 397196), (872, 367133), (911, 351416), (1417, 225928), (1612, 198598), (1822, 175708), (2834, 112964), (3224, 99299), (3379, 94744), (3644, 87854), (5668, 56482), (6758, 47372), (7288, 43927), (11336, 28241), (11843, 27032), (13516, 23686)]