1279751590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1\times {\mathrm{421}}^1$

素因数の和:857

約数の個数: 64

約数和(自身を含む): 2530987200

約数和(自身を除く): 1251235610

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 335, 349, 421, 670, 698, 842, 871, 1742, 1745, 2105, 3490, 4210, 4355, 4537, 5473, 8710, 9074, 10946, 22685, 23383, 27365, 28207, 45370, 46766, 54730, 56414, 116915, 141035, 146929, 233830, 282070, 293858, 303979, 366691, 607958, 733382, 734645, 1469290, 1519895, 1833455, 1910077, 3039790, 3666910, 3820154, 9550385, 9844243, 19100770, 19688486, 49221215, 98442430, 127975159, 255950318, 639875795, 1279751590]

約数ペア:

[(1, 1279751590), (2, 639875795), (5, 255950318), (10, 127975159), (13, 98442430), (26, 49221215), (65, 19688486), (67, 19100770), (130, 9844243), (134, 9550385), (335, 3820154), (349, 3666910), (421, 3039790), (670, 1910077), (698, 1833455), (842, 1519895), (871, 1469290), (1742, 734645), (1745, 733382), (2105, 607958), (3490, 366691), (4210, 303979), (4355, 293858), (4537, 282070), (5473, 233830), (8710, 146929), (9074, 141035), (10946, 116915), (22685, 56414), (23383, 54730), (27365, 46766), (28207, 45370)]