80578540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{82223}}^1$

素因数の和:82246

約数の個数: 36

約数和(自身を含む): 196844256

約数和(自身を除く): 116265716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 82223, 164446, 328892, 411115, 575561, 822230, 1151122, 1644460, 2302244, 2877805, 4028927, 5755610, 8057854, 11511220, 16115708, 20144635, 40289270, 80578540]

約数ペア:

[(1, 80578540), (2, 40289270), (4, 20144635), (5, 16115708), (7, 11511220), (10, 8057854), (14, 5755610), (20, 4028927), (28, 2877805), (35, 2302244), (49, 1644460), (70, 1151122), (98, 822230), (140, 575561), (196, 411115), (245, 328892), (490, 164446), (980, 82223)]