78218080

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3517}}^1$

素因数の和:3671

約数の個数: 48

約数和(自身を含む): 186172560

約数和(自身を除く): 107954480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 1112, 1390, 2224, 2780, 3517, 4448, 5560, 7034, 11120, 14068, 17585, 22240, 28136, 35170, 56272, 70340, 112544, 140680, 281360, 488863, 562720, 977726, 1955452, 2444315, 3910904, 4888630, 7821808, 9777260, 15643616, 19554520, 39109040, 78218080]

約数ペア:

[(1, 78218080), (2, 39109040), (4, 19554520), (5, 15643616), (8, 9777260), (10, 7821808), (16, 4888630), (20, 3910904), (32, 2444315), (40, 1955452), (80, 977726), (139, 562720), (160, 488863), (278, 281360), (556, 140680), (695, 112544), (1112, 70340), (1390, 56272), (2224, 35170), (2780, 28136), (3517, 22240), (4448, 17585), (5560, 14068), (7034, 11120)]