81473910

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{387971}}^1$

素因数の和:387988

約数の個数: 32

約数和(自身を含む): 223471872

約数和(自身を除く): 141997962

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 387971, 775942, 1163913, 1939855, 2327826, 2715797, 3879710, 5431594, 5819565, 8147391, 11639130, 13578985, 16294782, 27157970, 40736955, 81473910]

約数ペア:

[(1, 81473910), (2, 40736955), (3, 27157970), (5, 16294782), (6, 13578985), (7, 11639130), (10, 8147391), (14, 5819565), (15, 5431594), (21, 3879710), (30, 2715797), (35, 2327826), (42, 1939855), (70, 1163913), (105, 775942), (210, 387971)]