81562440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{431}}^1$

素因数の和:547

約数の個数: 128

約数和(自身を含む): 261273600

約数和(自身を除く): 179711160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 83, 95, 114, 120, 152, 166, 190, 228, 249, 285, 332, 380, 415, 431, 456, 498, 570, 664, 760, 830, 862, 996, 1140, 1245, 1293, 1577, 1660, 1724, 1992, 2155, 2280, 2490, 2586, 3154, 3320, 3448, 4310, 4731, 4980, 5172, 6308, 6465, 7885, 8189, 8620, 9462, 9960, 10344, 12616, 12930, 15770, 16378, 17240, 18924, 23655, 24567, 25860, 31540, 32756, 35773, 37848, 40945, 47310, 49134, 51720, 63080, 65512, 71546, 81890, 94620, 98268, 107319, 122835, 143092, 163780, 178865, 189240, 196536, 214638, 245670, 286184, 327560, 357730, 429276, 491340, 536595, 679687, 715460, 858552, 982680, 1073190, 1359374, 1430920, 2039061, 2146380, 2718748, 3398435, 4078122, 4292760, 5437496, 6796870, 8156244, 10195305, 13593740, 16312488, 20390610, 27187480, 40781220, 81562440]

約数ペア:

[(1, 81562440), (2, 40781220), (3, 27187480), (4, 20390610), (5, 16312488), (6, 13593740), (8, 10195305), (10, 8156244), (12, 6796870), (15, 5437496), (19, 4292760), (20, 4078122), (24, 3398435), (30, 2718748), (38, 2146380), (40, 2039061), (57, 1430920), (60, 1359374), (76, 1073190), (83, 982680), (95, 858552), (114, 715460), (120, 679687), (152, 536595), (166, 491340), (190, 429276), (228, 357730), (249, 327560), (285, 286184), (332, 245670), (380, 214638), (415, 196536), (431, 189240), (456, 178865), (498, 163780), (570, 143092), (664, 122835), (760, 107319), (830, 98268), (862, 94620), (996, 81890), (1140, 71546), (1245, 65512), (1293, 63080), (1577, 51720), (1660, 49134), (1724, 47310), (1992, 40945), (2155, 37848), (2280, 35773), (2490, 32756), (2586, 31540), (3154, 25860), (3320, 24567), (3448, 23655), (4310, 18924), (4731, 17240), (4980, 16378), (5172, 15770), (6308, 12930), (6465, 12616), (7885, 10344), (8189, 9960), (8620, 9462)]