19788720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11779}}^1$

素因数の和:11802

約数の個数: 80

約数和(自身を含む): 70114560

約数和(自身を除く): 50325840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 11779, 23558, 35337, 47116, 58895, 70674, 82453, 94232, 117790, 141348, 164906, 176685, 188464, 235580, 247359, 282696, 329812, 353370, 412265, 471160, 494718, 565392, 659624, 706740, 824530, 942320, 989436, 1236795, 1319248, 1413480, 1649060, 1978872, 2473590, 2826960, 3298120, 3957744, 4947180, 6596240, 9894360, 19788720]

約数ペア:

[(1, 19788720), (2, 9894360), (3, 6596240), (4, 4947180), (5, 3957744), (6, 3298120), (7, 2826960), (8, 2473590), (10, 1978872), (12, 1649060), (14, 1413480), (15, 1319248), (16, 1236795), (20, 989436), (21, 942320), (24, 824530), (28, 706740), (30, 659624), (35, 565392), (40, 494718), (42, 471160), (48, 412265), (56, 353370), (60, 329812), (70, 282696), (80, 247359), (84, 235580), (105, 188464), (112, 176685), (120, 164906), (140, 141348), (168, 117790), (210, 94232), (240, 82453), (280, 70674), (336, 58895), (420, 47116), (560, 35337), (840, 23558), (1680, 11779)]