199904510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{80933}}^1$

素因数の和:80972

約数の個数: 32

約数和(自身を含む): 407907360

約数和(自身を除く): 208002850

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 80933, 161866, 404665, 809330, 1052129, 1537727, 2104258, 3075454, 5260645, 7688635, 10521290, 15377270, 19990451, 39980902, 99952255, 199904510]

約数ペア:

[(1, 199904510), (2, 99952255), (5, 39980902), (10, 19990451), (13, 15377270), (19, 10521290), (26, 7688635), (38, 5260645), (65, 3075454), (95, 2104258), (130, 1537727), (190, 1052129), (247, 809330), (494, 404665), (1235, 161866), (2470, 80933)]