69421780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{907}}^1$

素因数の和:1048

約数の個数: 48

約数和(自身を含む): 151018560

約数和(自身を除く): 81596780

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 89, 172, 178, 215, 356, 430, 445, 860, 890, 907, 1780, 1814, 3628, 3827, 4535, 7654, 9070, 15308, 18140, 19135, 38270, 39001, 76540, 78002, 80723, 156004, 161446, 195005, 322892, 390010, 403615, 780020, 807230, 1614460, 3471089, 6942178, 13884356, 17355445, 34710890, 69421780]

約数ペア:

[(1, 69421780), (2, 34710890), (4, 17355445), (5, 13884356), (10, 6942178), (20, 3471089), (43, 1614460), (86, 807230), (89, 780020), (172, 403615), (178, 390010), (215, 322892), (356, 195005), (430, 161446), (445, 156004), (860, 80723), (890, 78002), (907, 76540), (1780, 39001), (1814, 38270), (3628, 19135), (3827, 18140), (4535, 15308), (7654, 9070)]