20796720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12379}}^1$

素因数の和:12402

約数の個数: 80

約数和(自身を含む): 73685760

約数和(自身を除く): 52889040

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, 12379, 24758, 37137, 49516, 61895, 74274, 86653, 99032, 123790, 148548, 173306, 185685, 198064, 247580, 259959, 297096, 346612, 371370, 433265, 495160, 519918, 594192, 693224, 742740, 866530, 990320, 1039836, 1299795, 1386448, 1485480, 1733060, 2079672, 2599590, 2970960, 3466120, 4159344, 5199180, 6932240, 10398360, 20796720]

約数ペア:

[(1, 20796720), (2, 10398360), (3, 6932240), (4, 5199180), (5, 4159344), (6, 3466120), (7, 2970960), (8, 2599590), (10, 2079672), (12, 1733060), (14, 1485480), (15, 1386448), (16, 1299795), (20, 1039836), (21, 990320), (24, 866530), (28, 742740), (30, 693224), (35, 594192), (40, 519918), (42, 495160), (48, 433265), (56, 371370), (60, 346612), (70, 297096), (80, 259959), (84, 247580), (105, 198064), (112, 185685), (120, 173306), (140, 148548), (168, 123790), (210, 99032), (240, 86653), (280, 74274), (336, 61895), (420, 49516), (560, 37137), (840, 24758), (1680, 12379)]