218540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{223}}^1$

素因数の和:246

約数の個数: 36

約数和(自身を含む): 536256

約数和(自身を除く): 317716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 223, 245, 446, 490, 892, 980, 1115, 1561, 2230, 3122, 4460, 6244, 7805, 10927, 15610, 21854, 31220, 43708, 54635, 109270, 218540]

約数ペア:

[(1, 218540), (2, 109270), (4, 54635), (5, 43708), (7, 31220), (10, 21854), (14, 15610), (20, 10927), (28, 7805), (35, 6244), (49, 4460), (70, 3122), (98, 2230), (140, 1561), (196, 1115), (223, 980), (245, 892), (446, 490)]