2178768780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{6827}}^1$

素因数の和:7045

約数の個数: 120

約数和(自身を含む): 6870579408

約数和(自身を除く): 4691810628

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 197, 270, 324, 394, 405, 540, 591, 788, 810, 985, 1182, 1620, 1773, 1970, 2364, 2955, 3546, 3940, 5319, 5910, 6827, 7092, 8865, 10638, 11820, 13654, 15957, 17730, 20481, 21276, 26595, 27308, 31914, 34135, 35460, 40962, 53190, 61443, 63828, 68270, 79785, 81924, 102405, 106380, 122886, 136540, 159570, 184329, 204810, 245772, 307215, 319140, 368658, 409620, 552987, 614430, 737316, 921645, 1105974, 1228860, 1344919, 1843290, 2211948, 2689838, 2764935, 3686580, 4034757, 5379676, 5529870, 6724595, 8069514, 11059740, 12104271, 13449190, 16139028, 20173785, 24208542, 26898380, 36312813, 40347570, 48417084, 60521355, 72625626, 80695140, 108938439, 121042710, 145251252, 181564065, 217876878, 242085420, 363128130, 435753756, 544692195, 726256260, 1089384390, 2178768780]

約数ペア:

[(1, 2178768780), (2, 1089384390), (3, 726256260), (4, 544692195), (5, 435753756), (6, 363128130), (9, 242085420), (10, 217876878), (12, 181564065), (15, 145251252), (18, 121042710), (20, 108938439), (27, 80695140), (30, 72625626), (36, 60521355), (45, 48417084), (54, 40347570), (60, 36312813), (81, 26898380), (90, 24208542), (108, 20173785), (135, 16139028), (162, 13449190), (180, 12104271), (197, 11059740), (270, 8069514), (324, 6724595), (394, 5529870), (405, 5379676), (540, 4034757), (591, 3686580), (788, 2764935), (810, 2689838), (985, 2211948), (1182, 1843290), (1620, 1344919), (1773, 1228860), (1970, 1105974), (2364, 921645), (2955, 737316), (3546, 614430), (3940, 552987), (5319, 409620), (5910, 368658), (6827, 319140), (7092, 307215), (8865, 245772), (10638, 204810), (11820, 184329), (13654, 159570), (15957, 136540), (17730, 122886), (20481, 106380), (21276, 102405), (26595, 81924), (27308, 79785), (31914, 68270), (34135, 63828), (35460, 61443), (40962, 53190)]