20669880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2237}}^1$

素因数の和:2269

約数の個数: 128

約数和(自身を含む): 77345280

約数和(自身を除く): 56675400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2237, 2310, 3080, 4474, 4620, 6711, 8948, 9240, 11185, 13422, 15659, 17896, 22370, 24607, 26844, 31318, 33555, 44740, 46977, 49214, 53688, 62636, 67110, 73821, 78295, 89480, 93954, 98428, 123035, 125272, 134220, 147642, 156590, 172249, 187908, 196856, 234885, 246070, 268440, 295284, 313180, 344498, 369105, 375816, 469770, 492140, 516747, 590568, 626360, 688996, 738210, 861245, 939540, 984280, 1033494, 1377992, 1476420, 1722490, 1879080, 2066988, 2583735, 2952840, 3444980, 4133976, 5167470, 6889960, 10334940, 20669880]

約数ペア:

[(1, 20669880), (2, 10334940), (3, 6889960), (4, 5167470), (5, 4133976), (6, 3444980), (7, 2952840), (8, 2583735), (10, 2066988), (11, 1879080), (12, 1722490), (14, 1476420), (15, 1377992), (20, 1033494), (21, 984280), (22, 939540), (24, 861245), (28, 738210), (30, 688996), (33, 626360), (35, 590568), (40, 516747), (42, 492140), (44, 469770), (55, 375816), (56, 369105), (60, 344498), (66, 313180), (70, 295284), (77, 268440), (84, 246070), (88, 234885), (105, 196856), (110, 187908), (120, 172249), (132, 156590), (140, 147642), (154, 134220), (165, 125272), (168, 123035), (210, 98428), (220, 93954), (231, 89480), (264, 78295), (280, 73821), (308, 67110), (330, 62636), (385, 53688), (420, 49214), (440, 46977), (462, 44740), (616, 33555), (660, 31318), (770, 26844), (840, 24607), (924, 22370), (1155, 17896), (1320, 15659), (1540, 13422), (1848, 11185), (2237, 9240), (2310, 8948), (3080, 6711), (4474, 4620)]