77856920

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{11251}}^1$

素因数の和:11435

約数の個数: 32

約数和(自身を含む): 176206320

約数和(自身を除く): 98349400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 11251, 22502, 45004, 56255, 90008, 112510, 225020, 450040, 1946423, 3892846, 7785692, 9732115, 15571384, 19464230, 38928460, 77856920]

約数ペア:

[(1, 77856920), (2, 38928460), (4, 19464230), (5, 15571384), (8, 9732115), (10, 7785692), (20, 3892846), (40, 1946423), (173, 450040), (346, 225020), (692, 112510), (865, 90008), (1384, 56255), (1730, 45004), (3460, 22502), (6920, 11251)]