1720680444

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{49123}}^1$

素因数の和:49279

約数の個数: 72

約数和(自身を含む): 5006718080

約数和(自身を除く): 3286037636

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 139, 252, 278, 417, 556, 834, 973, 1251, 1668, 1946, 2502, 2919, 3892, 5004, 5838, 8757, 11676, 17514, 35028, 49123, 98246, 147369, 196492, 294738, 343861, 442107, 589476, 687722, 884214, 1031583, 1375444, 1768428, 2063166, 3094749, 4126332, 6189498, 6828097, 12378996, 13656194, 20484291, 27312388, 40968582, 47796679, 61452873, 81937164, 95593358, 122905746, 143390037, 191186716, 245811492, 286780074, 430170111, 573560148, 860340222, 1720680444]

約数ペア:

[(1, 1720680444), (2, 860340222), (3, 573560148), (4, 430170111), (6, 286780074), (7, 245811492), (9, 191186716), (12, 143390037), (14, 122905746), (18, 95593358), (21, 81937164), (28, 61452873), (36, 47796679), (42, 40968582), (63, 27312388), (84, 20484291), (126, 13656194), (139, 12378996), (252, 6828097), (278, 6189498), (417, 4126332), (556, 3094749), (834, 2063166), (973, 1768428), (1251, 1375444), (1668, 1031583), (1946, 884214), (2502, 687722), (2919, 589476), (3892, 442107), (5004, 343861), (5838, 294738), (8757, 196492), (11676, 147369), (17514, 98246), (35028, 49123)]