28067940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{283}}^1$

素因数の和:346

約数の個数: 144

約数和(自身を含む): 93038400

約数和(自身を除く): 64970460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 29, 30, 36, 38, 45, 57, 58, 60, 76, 87, 90, 95, 114, 116, 145, 171, 174, 180, 190, 228, 261, 283, 285, 290, 342, 348, 380, 435, 522, 551, 566, 570, 580, 684, 849, 855, 870, 1044, 1102, 1132, 1140, 1305, 1415, 1653, 1698, 1710, 1740, 2204, 2547, 2610, 2755, 2830, 3306, 3396, 3420, 4245, 4959, 5094, 5220, 5377, 5510, 5660, 6612, 8207, 8265, 8490, 9918, 10188, 10754, 11020, 12735, 16131, 16414, 16530, 16980, 19836, 21508, 24621, 24795, 25470, 26885, 32262, 32828, 33060, 41035, 48393, 49242, 49590, 50940, 53770, 64524, 73863, 80655, 82070, 96786, 98484, 99180, 107540, 123105, 147726, 155933, 161310, 164140, 193572, 241965, 246210, 295452, 311866, 322620, 369315, 467799, 483930, 492420, 623732, 738630, 779665, 935598, 967860, 1403397, 1477260, 1559330, 1871196, 2338995, 2806794, 3118660, 4677990, 5613588, 7016985, 9355980, 14033970, 28067940]

約数ペア:

[(1, 28067940), (2, 14033970), (3, 9355980), (4, 7016985), (5, 5613588), (6, 4677990), (9, 3118660), (10, 2806794), (12, 2338995), (15, 1871196), (18, 1559330), (19, 1477260), (20, 1403397), (29, 967860), (30, 935598), (36, 779665), (38, 738630), (45, 623732), (57, 492420), (58, 483930), (60, 467799), (76, 369315), (87, 322620), (90, 311866), (95, 295452), (114, 246210), (116, 241965), (145, 193572), (171, 164140), (174, 161310), (180, 155933), (190, 147726), (228, 123105), (261, 107540), (283, 99180), (285, 98484), (290, 96786), (342, 82070), (348, 80655), (380, 73863), (435, 64524), (522, 53770), (551, 50940), (566, 49590), (570, 49242), (580, 48393), (684, 41035), (849, 33060), (855, 32828), (870, 32262), (1044, 26885), (1102, 25470), (1132, 24795), (1140, 24621), (1305, 21508), (1415, 19836), (1653, 16980), (1698, 16530), (1710, 16414), (1740, 16131), (2204, 12735), (2547, 11020), (2610, 10754), (2755, 10188), (2830, 9918), (3306, 8490), (3396, 8265), (3420, 8207), (4245, 6612), (4959, 5660), (5094, 5510), (5220, 5377)]