138028520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{21433}}^1$

素因数の和:21474

約数の個数: 64

約数和(自身を含む): 370379520

約数和(自身を除く): 232351000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 21433, 42866, 85732, 107165, 150031, 171464, 214330, 300062, 428660, 492959, 600124, 750155, 857320, 985918, 1200248, 1500310, 1971836, 2464795, 3000620, 3450713, 3943672, 4929590, 6001240, 6901426, 9859180, 13802852, 17253565, 19718360, 27605704, 34507130, 69014260, 138028520]

約数ペア:

[(1, 138028520), (2, 69014260), (4, 34507130), (5, 27605704), (7, 19718360), (8, 17253565), (10, 13802852), (14, 9859180), (20, 6901426), (23, 6001240), (28, 4929590), (35, 3943672), (40, 3450713), (46, 3000620), (56, 2464795), (70, 1971836), (92, 1500310), (115, 1200248), (140, 985918), (161, 857320), (184, 750155), (230, 600124), (280, 492959), (322, 428660), (460, 300062), (644, 214330), (805, 171464), (920, 150031), (1288, 107165), (1610, 85732), (3220, 42866), (6440, 21433)]