21369040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3469}}^1$

素因数の和:3500

約数の個数: 80

約数和(自身を含む): 61960320

約数和(自身を除く): 40591280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 3469, 6160, 6938, 13876, 17345, 24283, 27752, 34690, 38159, 48566, 55504, 69380, 76318, 97132, 121415, 138760, 152636, 190795, 194264, 242830, 267113, 277520, 305272, 381590, 388528, 485660, 534226, 610544, 763180, 971320, 1068452, 1335565, 1526360, 1942640, 2136904, 2671130, 3052720, 4273808, 5342260, 10684520, 21369040]

約数ペア:

[(1, 21369040), (2, 10684520), (4, 5342260), (5, 4273808), (7, 3052720), (8, 2671130), (10, 2136904), (11, 1942640), (14, 1526360), (16, 1335565), (20, 1068452), (22, 971320), (28, 763180), (35, 610544), (40, 534226), (44, 485660), (55, 388528), (56, 381590), (70, 305272), (77, 277520), (80, 267113), (88, 242830), (110, 194264), (112, 190795), (140, 152636), (154, 138760), (176, 121415), (220, 97132), (280, 76318), (308, 69380), (385, 55504), (440, 48566), (560, 38159), (616, 34690), (770, 27752), (880, 24283), (1232, 17345), (1540, 13876), (3080, 6938), (3469, 6160)]