961265860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:821

約数の個数: 96

約数和(自身を含む): 2202076800

約数和(自身を除く): 1240810940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 89, 95, 172, 178, 190, 215, 356, 380, 430, 445, 661, 817, 860, 890, 1322, 1634, 1691, 1780, 2644, 3268, 3305, 3382, 3827, 4085, 6610, 6764, 7654, 8170, 8455, 12559, 13220, 15308, 16340, 16910, 19135, 25118, 28423, 33820, 38270, 50236, 56846, 58829, 62795, 72713, 76540, 113692, 117658, 125590, 142115, 145426, 235316, 251180, 284230, 290852, 294145, 363565, 540037, 568460, 588290, 727130, 1080074, 1117751, 1176580, 1454260, 2160148, 2235502, 2529647, 2700185, 4471004, 5059294, 5400370, 5588755, 10118588, 10800740, 11177510, 12648235, 22355020, 25296470, 48063293, 50592940, 96126586, 192253172, 240316465, 480632930, 961265860]

約数ペア:

[(1, 961265860), (2, 480632930), (4, 240316465), (5, 192253172), (10, 96126586), (19, 50592940), (20, 48063293), (38, 25296470), (43, 22355020), (76, 12648235), (86, 11177510), (89, 10800740), (95, 10118588), (172, 5588755), (178, 5400370), (190, 5059294), (215, 4471004), (356, 2700185), (380, 2529647), (430, 2235502), (445, 2160148), (661, 1454260), (817, 1176580), (860, 1117751), (890, 1080074), (1322, 727130), (1634, 588290), (1691, 568460), (1780, 540037), (2644, 363565), (3268, 294145), (3305, 290852), (3382, 284230), (3827, 251180), (4085, 235316), (6610, 145426), (6764, 142115), (7654, 125590), (8170, 117658), (8455, 113692), (12559, 76540), (13220, 72713), (15308, 62795), (16340, 58829), (16910, 56846), (19135, 50236), (25118, 38270), (28423, 33820)]