221320680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{7121}}^1$

素因数の和:7179

約数の個数: 128

約数和(自身を含む): 779431680

約数和(自身を除く): 558111000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 56, 60, 70, 74, 84, 105, 111, 120, 140, 148, 168, 185, 210, 222, 259, 280, 296, 370, 420, 444, 518, 555, 740, 777, 840, 888, 1036, 1110, 1295, 1480, 1554, 2072, 2220, 2590, 3108, 3885, 4440, 5180, 6216, 7121, 7770, 10360, 14242, 15540, 21363, 28484, 31080, 35605, 42726, 49847, 56968, 71210, 85452, 99694, 106815, 142420, 149541, 170904, 199388, 213630, 249235, 263477, 284840, 299082, 398776, 427260, 498470, 526954, 598164, 747705, 790431, 854520, 996940, 1053908, 1196328, 1317385, 1495410, 1580862, 1844339, 1993880, 2107816, 2634770, 2990820, 3161724, 3688678, 3952155, 5269540, 5533017, 5981640, 6323448, 7377356, 7904310, 9221695, 10539080, 11066034, 14754712, 15808620, 18443390, 22132068, 27665085, 31617240, 36886780, 44264136, 55330170, 73773560, 110660340, 221320680]

約数ペア:

[(1, 221320680), (2, 110660340), (3, 73773560), (4, 55330170), (5, 44264136), (6, 36886780), (7, 31617240), (8, 27665085), (10, 22132068), (12, 18443390), (14, 15808620), (15, 14754712), (20, 11066034), (21, 10539080), (24, 9221695), (28, 7904310), (30, 7377356), (35, 6323448), (37, 5981640), (40, 5533017), (42, 5269540), (56, 3952155), (60, 3688678), (70, 3161724), (74, 2990820), (84, 2634770), (105, 2107816), (111, 1993880), (120, 1844339), (140, 1580862), (148, 1495410), (168, 1317385), (185, 1196328), (210, 1053908), (222, 996940), (259, 854520), (280, 790431), (296, 747705), (370, 598164), (420, 526954), (444, 498470), (518, 427260), (555, 398776), (740, 299082), (777, 284840), (840, 263477), (888, 249235), (1036, 213630), (1110, 199388), (1295, 170904), (1480, 149541), (1554, 142420), (2072, 106815), (2220, 99694), (2590, 85452), (3108, 71210), (3885, 56968), (4440, 49847), (5180, 42726), (6216, 35605), (7121, 31080), (7770, 28484), (10360, 21363), (14242, 15540)]