1665437540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{373}}^1\times {\mathrm{1321}}^1$

素因数の和:1729

約数の個数: 72

約数和(自身を含む): 3800173608

約数和(自身を除く): 2134736068

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 373, 676, 746, 845, 1321, 1492, 1690, 1865, 2642, 3380, 3730, 4849, 5284, 6605, 7460, 9698, 13210, 17173, 19396, 24245, 26420, 34346, 48490, 63037, 68692, 85865, 96980, 126074, 171730, 223249, 252148, 315185, 343460, 446498, 492733, 630370, 892996, 985466, 1116245, 1260740, 1970932, 2232490, 2463665, 4464980, 4927330, 6405529, 9854660, 12811058, 25622116, 32027645, 64055290, 83271877, 128110580, 166543754, 333087508, 416359385, 832718770, 1665437540]

約数ペア:

[(1, 1665437540), (2, 832718770), (4, 416359385), (5, 333087508), (10, 166543754), (13, 128110580), (20, 83271877), (26, 64055290), (52, 32027645), (65, 25622116), (130, 12811058), (169, 9854660), (260, 6405529), (338, 4927330), (373, 4464980), (676, 2463665), (746, 2232490), (845, 1970932), (1321, 1260740), (1492, 1116245), (1690, 985466), (1865, 892996), (2642, 630370), (3380, 492733), (3730, 446498), (4849, 343460), (5284, 315185), (6605, 252148), (7460, 223249), (9698, 171730), (13210, 126074), (17173, 96980), (19396, 85865), (24245, 68692), (26420, 63037), (34346, 48490)]