212987240

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{22279}}^1$

素因数の和:22529

約数の個数: 32

約数和(自身を含む): 481248000

約数和(自身を除く): 268260760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 9560, 22279, 44558, 89116, 111395, 178232, 222790, 445580, 891160, 5324681, 10649362, 21298724, 26623405, 42597448, 53246810, 106493620, 212987240]

約数ペア:

[(1, 212987240), (2, 106493620), (4, 53246810), (5, 42597448), (8, 26623405), (10, 21298724), (20, 10649362), (40, 5324681), (239, 891160), (478, 445580), (956, 222790), (1195, 178232), (1912, 111395), (2390, 89116), (4780, 44558), (9560, 22279)]