289739380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1021}}^1\times {\mathrm{2027}}^1$

素因数の和:3064

約数の個数: 48

約数和(自身を含む): 696398976

約数和(自身を除く): 406659596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1021, 2027, 2042, 4054, 4084, 5105, 7147, 8108, 10135, 10210, 14189, 14294, 20270, 20420, 28378, 28588, 35735, 40540, 56756, 70945, 71470, 141890, 142940, 283780, 2069567, 4139134, 8278268, 10347835, 14486969, 20695670, 28973938, 41391340, 57947876, 72434845, 144869690, 289739380]

約数ペア:

[(1, 289739380), (2, 144869690), (4, 72434845), (5, 57947876), (7, 41391340), (10, 28973938), (14, 20695670), (20, 14486969), (28, 10347835), (35, 8278268), (70, 4139134), (140, 2069567), (1021, 283780), (2027, 142940), (2042, 141890), (4054, 71470), (4084, 70945), (5105, 56756), (7147, 40540), (8108, 35735), (10135, 28588), (10210, 28378), (14189, 20420), (14294, 20270)]