55501880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{198221}}^1$

素因数の和:198239

約数の個数: 32

約数和(自身を含む): 142719840

約数和(自身を除く): 87217960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 198221, 396442, 792884, 991105, 1387547, 1585768, 1982210, 2775094, 3964420, 5550188, 6937735, 7928840, 11100376, 13875470, 27750940, 55501880]

約数ペア:

[(1, 55501880), (2, 27750940), (4, 13875470), (5, 11100376), (7, 7928840), (8, 6937735), (10, 5550188), (14, 3964420), (20, 2775094), (28, 1982210), (35, 1585768), (40, 1387547), (56, 991105), (70, 792884), (140, 396442), (280, 198221)]