320804510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{57389}}^1$

素因数の和:57452

約数の個数: 32

約数和(自身を含む): 636340320

約数和(自身を除く): 315535810

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 5590, 57389, 114778, 286945, 573890, 746057, 1492114, 2467727, 3730285, 4935454, 7460570, 12338635, 24677270, 32080451, 64160902, 160402255, 320804510]

約数ペア:

[(1, 320804510), (2, 160402255), (5, 64160902), (10, 32080451), (13, 24677270), (26, 12338635), (43, 7460570), (65, 4935454), (86, 3730285), (130, 2467727), (215, 1492114), (430, 746057), (559, 573890), (1118, 286945), (2795, 114778), (5590, 57389)]