20456065

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1619}}^1$

素因数の和:1669

約数の個数: 24

約数和(自身を含む): 29626560

約数和(自身を除く): 9170495

約数列:

[1, 5, 7, 19, 35, 95, 133, 361, 665, 1619, 1805, 2527, 8095, 11333, 12635, 30761, 56665, 153805, 215327, 584459, 1076635, 2922295, 4091213, 20456065]

約数ペア:

[(1, 20456065), (5, 4091213), (7, 2922295), (19, 1076635), (35, 584459), (95, 215327), (133, 153805), (361, 56665), (665, 30761), (1619, 12635), (1805, 11333), (2527, 8095)]