155212420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{691}}^1\times {\mathrm{1021}}^1$

素因数の和:1732

約数の個数: 48

約数和(自身を含む): 356440896

約数和(自身を除く): 201228476

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 691, 1021, 1382, 2042, 2764, 3455, 4084, 5105, 6910, 7601, 10210, 11231, 13820, 15202, 20420, 22462, 30404, 38005, 44924, 56155, 76010, 112310, 152020, 224620, 705511, 1411022, 2822044, 3527555, 7055110, 7760621, 14110220, 15521242, 31042484, 38803105, 77606210, 155212420]

約数ペア:

[(1, 155212420), (2, 77606210), (4, 38803105), (5, 31042484), (10, 15521242), (11, 14110220), (20, 7760621), (22, 7055110), (44, 3527555), (55, 2822044), (110, 1411022), (220, 705511), (691, 224620), (1021, 152020), (1382, 112310), (2042, 76010), (2764, 56155), (3455, 44924), (4084, 38005), (5105, 30404), (6910, 22462), (7601, 20420), (10210, 15202), (11231, 13820)]