164245480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{1361}}^1$

素因数の和:1810

約数の個数: 64

約数和(自身を含む): 423636480

約数和(自身を除く): 259391000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 431, 862, 1361, 1724, 2155, 2722, 3017, 3448, 4310, 5444, 6034, 6805, 8620, 9527, 10888, 12068, 13610, 15085, 17240, 19054, 24136, 27220, 30170, 38108, 47635, 54440, 60340, 76216, 95270, 120680, 190540, 381080, 586591, 1173182, 2346364, 2932955, 4106137, 4692728, 5865910, 8212274, 11731820, 16424548, 20530685, 23463640, 32849096, 41061370, 82122740, 164245480]

約数ペア:

[(1, 164245480), (2, 82122740), (4, 41061370), (5, 32849096), (7, 23463640), (8, 20530685), (10, 16424548), (14, 11731820), (20, 8212274), (28, 5865910), (35, 4692728), (40, 4106137), (56, 2932955), (70, 2346364), (140, 1173182), (280, 586591), (431, 381080), (862, 190540), (1361, 120680), (1724, 95270), (2155, 76216), (2722, 60340), (3017, 54440), (3448, 47635), (4310, 38108), (5444, 30170), (6034, 27220), (6805, 24136), (8620, 19054), (9527, 17240), (10888, 15085), (12068, 13610)]