81278580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{859}}^1$

素因数の和:973

約数の個数: 96

約数和(自身を含む): 242726400

約数和(自身を除く): 161447820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 83, 95, 114, 166, 190, 228, 249, 285, 332, 380, 415, 498, 570, 830, 859, 996, 1140, 1245, 1577, 1660, 1718, 2490, 2577, 3154, 3436, 4295, 4731, 4980, 5154, 6308, 7885, 8590, 9462, 10308, 12885, 15770, 16321, 17180, 18924, 23655, 25770, 31540, 32642, 47310, 48963, 51540, 65284, 71297, 81605, 94620, 97926, 142594, 163210, 195852, 213891, 244815, 285188, 326420, 356485, 427782, 489630, 712970, 855564, 979260, 1069455, 1354643, 1425940, 2138910, 2709286, 4063929, 4277820, 5418572, 6773215, 8127858, 13546430, 16255716, 20319645, 27092860, 40639290, 81278580]

約数ペア:

[(1, 81278580), (2, 40639290), (3, 27092860), (4, 20319645), (5, 16255716), (6, 13546430), (10, 8127858), (12, 6773215), (15, 5418572), (19, 4277820), (20, 4063929), (30, 2709286), (38, 2138910), (57, 1425940), (60, 1354643), (76, 1069455), (83, 979260), (95, 855564), (114, 712970), (166, 489630), (190, 427782), (228, 356485), (249, 326420), (285, 285188), (332, 244815), (380, 213891), (415, 195852), (498, 163210), (570, 142594), (830, 97926), (859, 94620), (996, 81605), (1140, 71297), (1245, 65284), (1577, 51540), (1660, 48963), (1718, 47310), (2490, 32642), (2577, 31540), (3154, 25770), (3436, 23655), (4295, 18924), (4731, 17180), (4980, 16321), (5154, 15770), (6308, 12885), (7885, 10308), (8590, 9462)]