31820685

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 60238080

約数和(自身を除く): 28417395

約数列:

[1, 3, 5, 13, 15, 17, 29, 39, 51, 65, 85, 87, 145, 195, 221, 255, 331, 377, 435, 493, 663, 993, 1105, 1131, 1479, 1655, 1885, 2465, 3315, 4303, 4965, 5627, 5655, 6409, 7395, 9599, 12909, 16881, 19227, 21515, 28135, 28797, 32045, 47995, 64545, 73151, 84405, 96135, 124787, 143985, 163183, 219453, 365755, 374361, 489549, 623935, 815915, 1097265, 1871805, 2121379, 2447745, 6364137, 10606895, 31820685]

約数ペア:

[(1, 31820685), (3, 10606895), (5, 6364137), (13, 2447745), (15, 2121379), (17, 1871805), (29, 1097265), (39, 815915), (51, 623935), (65, 489549), (85, 374361), (87, 365755), (145, 219453), (195, 163183), (221, 143985), (255, 124787), (331, 96135), (377, 84405), (435, 73151), (493, 64545), (663, 47995), (993, 32045), (1105, 28797), (1131, 28135), (1479, 21515), (1655, 19227), (1885, 16881), (2465, 12909), (3315, 9599), (4303, 7395), (4965, 6409), (5627, 5655)]