40802440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{145723}}^1$

素因数の和:145741

約数の個数: 32

約数和(自身を含む): 104921280

約数和(自身を除く): 64118840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 145723, 291446, 582892, 728615, 1020061, 1165784, 1457230, 2040122, 2914460, 4080244, 5100305, 5828920, 8160488, 10200610, 20401220, 40802440]

約数ペア:

[(1, 40802440), (2, 20401220), (4, 10200610), (5, 8160488), (7, 5828920), (8, 5100305), (10, 4080244), (14, 2914460), (20, 2040122), (28, 1457230), (35, 1165784), (40, 1020061), (56, 728615), (70, 582892), (140, 291446), (280, 145723)]