81657840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{30931}}^1$

素因数の和:30958

約数の個数: 80

約数和(自身を含む): 276160896

約数和(自身を除く): 194503056

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 30931, 61862, 92793, 123724, 154655, 185586, 247448, 309310, 340241, 371172, 463965, 494896, 618620, 680482, 742344, 927930, 1020723, 1237240, 1360964, 1484688, 1701205, 1855860, 2041446, 2474480, 2721928, 3402410, 3711720, 4082892, 5103615, 5443856, 6804820, 7423440, 8165784, 10207230, 13609640, 16331568, 20414460, 27219280, 40828920, 81657840]

約数ペア:

[(1, 81657840), (2, 40828920), (3, 27219280), (4, 20414460), (5, 16331568), (6, 13609640), (8, 10207230), (10, 8165784), (11, 7423440), (12, 6804820), (15, 5443856), (16, 5103615), (20, 4082892), (22, 3711720), (24, 3402410), (30, 2721928), (33, 2474480), (40, 2041446), (44, 1855860), (48, 1701205), (55, 1484688), (60, 1360964), (66, 1237240), (80, 1020723), (88, 927930), (110, 742344), (120, 680482), (132, 618620), (165, 494896), (176, 463965), (220, 371172), (240, 340241), (264, 309310), (330, 247448), (440, 185586), (528, 154655), (660, 123724), (880, 92793), (1320, 61862), (2640, 30931)]