20138685

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:338

約数の個数: 64

約数和(自身を含む): 39813120

約数和(自身を除く): 19674435

約数列:

[1, 3, 5, 7, 15, 21, 23, 31, 35, 69, 93, 105, 115, 155, 161, 217, 269, 345, 465, 483, 651, 713, 805, 807, 1085, 1345, 1883, 2139, 2415, 3255, 3565, 4035, 4991, 5649, 6187, 8339, 9415, 10695, 14973, 18561, 24955, 25017, 28245, 30935, 41695, 43309, 58373, 74865, 92805, 125085, 129927, 175119, 191797, 216545, 291865, 575391, 649635, 875595, 958985, 1342579, 2876955, 4027737, 6712895, 20138685]

約数ペア:

[(1, 20138685), (3, 6712895), (5, 4027737), (7, 2876955), (15, 1342579), (21, 958985), (23, 875595), (31, 649635), (35, 575391), (69, 291865), (93, 216545), (105, 191797), (115, 175119), (155, 129927), (161, 125085), (217, 92805), (269, 74865), (345, 58373), (465, 43309), (483, 41695), (651, 30935), (713, 28245), (805, 25017), (807, 24955), (1085, 18561), (1345, 14973), (1883, 10695), (2139, 9415), (2415, 8339), (3255, 6187), (3565, 5649), (4035, 4991)]