277840

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:187

約数の個数: 40

約数和(自身を含む): 678528

約数和(自身を除く): 400688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 151, 184, 230, 302, 368, 460, 604, 755, 920, 1208, 1510, 1840, 2416, 3020, 3473, 6040, 6946, 12080, 13892, 17365, 27784, 34730, 55568, 69460, 138920, 277840]

約数ペア:

[(1, 277840), (2, 138920), (4, 69460), (5, 55568), (8, 34730), (10, 27784), (16, 17365), (20, 13892), (23, 12080), (40, 6946), (46, 6040), (80, 3473), (92, 3020), (115, 2416), (151, 1840), (184, 1510), (230, 1208), (302, 920), (368, 755), (460, 604)]