71330420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{3719}}^1$

素因数の和:3872

約数の個数: 48

約数和(自身を含む): 172488960

約数和(自身を除く): 101158540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 685, 959, 1370, 1918, 2740, 3719, 3836, 4795, 7438, 9590, 14876, 18595, 19180, 26033, 37190, 52066, 74380, 104132, 130165, 260330, 509503, 520660, 1019006, 2038012, 2547515, 3566521, 5095030, 7133042, 10190060, 14266084, 17832605, 35665210, 71330420]

約数ペア:

[(1, 71330420), (2, 35665210), (4, 17832605), (5, 14266084), (7, 10190060), (10, 7133042), (14, 5095030), (20, 3566521), (28, 2547515), (35, 2038012), (70, 1019006), (137, 520660), (140, 509503), (274, 260330), (548, 130165), (685, 104132), (959, 74380), (1370, 52066), (1918, 37190), (2740, 26033), (3719, 19180), (3836, 18595), (4795, 14876), (7438, 9590)]