257821380

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2609}}^1$

素因数の和:2691

約数の個数: 120

約数和(自身を含む): 822369240

約数和(自身を除く): 564547860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 81, 90, 108, 122, 135, 162, 180, 183, 244, 270, 305, 324, 366, 405, 540, 549, 610, 732, 810, 915, 1098, 1220, 1620, 1647, 1830, 2196, 2609, 2745, 3294, 3660, 4941, 5218, 5490, 6588, 7827, 8235, 9882, 10436, 10980, 13045, 15654, 16470, 19764, 23481, 24705, 26090, 31308, 32940, 39135, 46962, 49410, 52180, 70443, 78270, 93924, 98820, 117405, 140886, 156540, 159149, 211329, 234810, 281772, 318298, 352215, 422658, 469620, 477447, 636596, 704430, 795745, 845316, 954894, 1056645, 1408860, 1432341, 1591490, 1909788, 2113290, 2387235, 2864682, 3182980, 4226580, 4297023, 4774470, 5729364, 7161705, 8594046, 9548940, 12891069, 14323410, 17188092, 21485115, 25782138, 28646820, 42970230, 51564276, 64455345, 85940460, 128910690, 257821380]

約数ペア:

[(1, 257821380), (2, 128910690), (3, 85940460), (4, 64455345), (5, 51564276), (6, 42970230), (9, 28646820), (10, 25782138), (12, 21485115), (15, 17188092), (18, 14323410), (20, 12891069), (27, 9548940), (30, 8594046), (36, 7161705), (45, 5729364), (54, 4774470), (60, 4297023), (61, 4226580), (81, 3182980), (90, 2864682), (108, 2387235), (122, 2113290), (135, 1909788), (162, 1591490), (180, 1432341), (183, 1408860), (244, 1056645), (270, 954894), (305, 845316), (324, 795745), (366, 704430), (405, 636596), (540, 477447), (549, 469620), (610, 422658), (732, 352215), (810, 318298), (915, 281772), (1098, 234810), (1220, 211329), (1620, 159149), (1647, 156540), (1830, 140886), (2196, 117405), (2609, 98820), (2745, 93924), (3294, 78270), (3660, 70443), (4941, 52180), (5218, 49410), (5490, 46962), (6588, 39135), (7827, 32940), (8235, 31308), (9882, 26090), (10436, 24705), (10980, 23481), (13045, 19764), (15654, 16470)]