80897060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{593}}^1$

素因数の和:980

約数の個数: 48

約数和(自身を含む): 179625600

約数和(自身を除く): 98728540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 359, 380, 593, 718, 1186, 1436, 1795, 2372, 2965, 3590, 5930, 6821, 7180, 11267, 11860, 13642, 22534, 27284, 34105, 45068, 56335, 68210, 112670, 136420, 212887, 225340, 425774, 851548, 1064435, 2128870, 4044853, 4257740, 8089706, 16179412, 20224265, 40448530, 80897060]

約数ペア:

[(1, 80897060), (2, 40448530), (4, 20224265), (5, 16179412), (10, 8089706), (19, 4257740), (20, 4044853), (38, 2128870), (76, 1064435), (95, 851548), (190, 425774), (359, 225340), (380, 212887), (593, 136420), (718, 112670), (1186, 68210), (1436, 56335), (1795, 45068), (2372, 34105), (2965, 27284), (3590, 22534), (5930, 13642), (6821, 11860), (7180, 11267)]