287222740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{15661}}^1$

素因数の和:15808

約数の個数: 48

約数和(自身を含む): 694641024

約数和(自身を除く): 407418284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 524, 655, 917, 1310, 1834, 2620, 3668, 4585, 9170, 15661, 18340, 31322, 62644, 78305, 109627, 156610, 219254, 313220, 438508, 548135, 1096270, 2051591, 2192540, 4103182, 8206364, 10257955, 14361137, 20515910, 28722274, 41031820, 57444548, 71805685, 143611370, 287222740]

約数ペア:

[(1, 287222740), (2, 143611370), (4, 71805685), (5, 57444548), (7, 41031820), (10, 28722274), (14, 20515910), (20, 14361137), (28, 10257955), (35, 8206364), (70, 4103182), (131, 2192540), (140, 2051591), (262, 1096270), (524, 548135), (655, 438508), (917, 313220), (1310, 219254), (1834, 156610), (2620, 109627), (3668, 78305), (4585, 62644), (9170, 31322), (15661, 18340)]