660817240

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{60961}}^1$

素因数の和:61243

約数の個数: 32

約数和(自身を含む): 1492349760

約数和(自身を除く): 831532520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 10840, 60961, 121922, 243844, 304805, 487688, 609610, 1219220, 2438440, 16520431, 33040862, 66081724, 82602155, 132163448, 165204310, 330408620, 660817240]

約数ペア:

[(1, 660817240), (2, 330408620), (4, 165204310), (5, 132163448), (8, 82602155), (10, 66081724), (20, 33040862), (40, 16520431), (271, 2438440), (542, 1219220), (1084, 609610), (1355, 487688), (2168, 304805), (2710, 243844), (5420, 121922), (10840, 60961)]