77420560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{138251}}^1$

素因数の和:138271

約数の個数: 40

約数和(自身を含む): 205718976

約数和(自身を除く): 128298416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 138251, 276502, 553004, 691255, 967757, 1106008, 1382510, 1935514, 2212016, 2765020, 3871028, 4838785, 5530040, 7742056, 9677570, 11060080, 15484112, 19355140, 38710280, 77420560]

約数ペア:

[(1, 77420560), (2, 38710280), (4, 19355140), (5, 15484112), (7, 11060080), (8, 9677570), (10, 7742056), (14, 5530040), (16, 4838785), (20, 3871028), (28, 2765020), (35, 2212016), (40, 1935514), (56, 1382510), (70, 1106008), (80, 967757), (112, 691255), (140, 553004), (280, 276502), (560, 138251)]