1779980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1459}}^1$

素因数の和:1529

約数の個数: 24

約数和(自身を含む): 3801840

約数和(自身を除く): 2021860

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1459, 2918, 5836, 7295, 14590, 29180, 88999, 177998, 355996, 444995, 889990, 1779980]

約数ペア:

[(1, 1779980), (2, 889990), (4, 444995), (5, 355996), (10, 177998), (20, 88999), (61, 29180), (122, 14590), (244, 7295), (305, 5836), (610, 2918), (1220, 1459)]