788266220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{40507}}^1$

素因数の和:40662

約数の個数: 48

約数和(自身を含む): 1905496320

約数和(自身を除く): 1117230100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4865, 9730, 19460, 40507, 81014, 162028, 202535, 283549, 405070, 567098, 810140, 1134196, 1417745, 2835490, 5630473, 5670980, 11260946, 22521892, 28152365, 39413311, 56304730, 78826622, 112609460, 157653244, 197066555, 394133110, 788266220]

約数ペア:

[(1, 788266220), (2, 394133110), (4, 197066555), (5, 157653244), (7, 112609460), (10, 78826622), (14, 56304730), (20, 39413311), (28, 28152365), (35, 22521892), (70, 11260946), (139, 5670980), (140, 5630473), (278, 2835490), (556, 1417745), (695, 1134196), (973, 810140), (1390, 567098), (1946, 405070), (2780, 283549), (3892, 202535), (4865, 162028), (9730, 81014), (19460, 40507)]