220132731

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 376621056

約数和(自身を除く): 156488325

約数列:

[1, 3, 7, 13, 21, 39, 41, 71, 91, 123, 213, 273, 277, 287, 497, 533, 831, 861, 923, 1491, 1599, 1939, 2769, 2911, 3601, 3731, 5817, 6461, 8733, 10803, 11193, 11357, 19383, 19667, 20377, 25207, 34071, 37843, 59001, 61131, 75621, 79499, 113529, 137669, 147641, 238497, 255671, 264901, 413007, 442923, 767013, 794703, 806347, 1033487, 1789697, 2419041, 3100461, 5369091, 5644429, 10482511, 16933287, 31447533, 73377577, 220132731]

約数ペア:

[(1, 220132731), (3, 73377577), (7, 31447533), (13, 16933287), (21, 10482511), (39, 5644429), (41, 5369091), (71, 3100461), (91, 2419041), (123, 1789697), (213, 1033487), (273, 806347), (277, 794703), (287, 767013), (497, 442923), (533, 413007), (831, 264901), (861, 255671), (923, 238497), (1491, 147641), (1599, 137669), (1939, 113529), (2769, 79499), (2911, 75621), (3601, 61131), (3731, 59001), (5817, 37843), (6461, 34071), (8733, 25207), (10803, 20377), (11193, 19667), (11357, 19383)]