80451140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{439}}^1$

素因数の和:490

約数の個数: 144

約数和(自身を含む): 227525760

約数和(自身を除く): 147074620

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 20, 22, 28, 34, 35, 44, 49, 55, 68, 70, 77, 85, 98, 110, 119, 140, 154, 170, 187, 196, 220, 238, 245, 308, 340, 374, 385, 439, 476, 490, 539, 595, 748, 770, 833, 878, 935, 980, 1078, 1190, 1309, 1540, 1666, 1756, 1870, 2156, 2195, 2380, 2618, 2695, 3073, 3332, 3740, 4165, 4390, 4829, 5236, 5390, 6146, 6545, 7463, 8330, 8780, 9163, 9658, 10780, 12292, 13090, 14926, 15365, 16660, 18326, 19316, 21511, 24145, 26180, 29852, 30730, 33803, 36652, 37315, 43022, 45815, 48290, 52241, 61460, 67606, 74630, 82093, 86044, 91630, 96580, 104482, 107555, 135212, 149260, 164186, 169015, 183260, 208964, 215110, 236621, 261205, 328372, 338030, 365687, 410465, 430220, 473242, 522410, 574651, 676060, 731374, 820930, 946484, 1044820, 1149302, 1183105, 1462748, 1641860, 1828435, 2298604, 2366210, 2873255, 3656870, 4022557, 4732420, 5746510, 7313740, 8045114, 11493020, 16090228, 20112785, 40225570, 80451140]

約数ペア:

[(1, 80451140), (2, 40225570), (4, 20112785), (5, 16090228), (7, 11493020), (10, 8045114), (11, 7313740), (14, 5746510), (17, 4732420), (20, 4022557), (22, 3656870), (28, 2873255), (34, 2366210), (35, 2298604), (44, 1828435), (49, 1641860), (55, 1462748), (68, 1183105), (70, 1149302), (77, 1044820), (85, 946484), (98, 820930), (110, 731374), (119, 676060), (140, 574651), (154, 522410), (170, 473242), (187, 430220), (196, 410465), (220, 365687), (238, 338030), (245, 328372), (308, 261205), (340, 236621), (374, 215110), (385, 208964), (439, 183260), (476, 169015), (490, 164186), (539, 149260), (595, 135212), (748, 107555), (770, 104482), (833, 96580), (878, 91630), (935, 86044), (980, 82093), (1078, 74630), (1190, 67606), (1309, 61460), (1540, 52241), (1666, 48290), (1756, 45815), (1870, 43022), (2156, 37315), (2195, 36652), (2380, 33803), (2618, 30730), (2695, 29852), (3073, 26180), (3332, 24145), (3740, 21511), (4165, 19316), (4390, 18326), (4829, 16660), (5236, 15365), (5390, 14926), (6146, 13090), (6545, 12292), (7463, 10780), (8330, 9658), (8780, 9163)]