81120039

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1$

素因数の和:285

約数の個数: 96

約数和(自身を含む): 157199616

約数和(自身を除く): 76079577

約数列:

[1, 3, 7, 11, 13, 17, 21, 33, 39, 49, 51, 77, 91, 119, 143, 147, 187, 221, 227, 231, 273, 357, 429, 539, 561, 637, 663, 681, 833, 1001, 1309, 1547, 1589, 1617, 1911, 2431, 2497, 2499, 2951, 3003, 3859, 3927, 4641, 4767, 7007, 7293, 7491, 8853, 9163, 10829, 11123, 11577, 17017, 17479, 20657, 21021, 27013, 27489, 32461, 32487, 33369, 42449, 50167, 51051, 52437, 61971, 81039, 97383, 119119, 122353, 127347, 144599, 150501, 189091, 227227, 297143, 351169, 357357, 367059, 433797, 551837, 567273, 681681, 891429, 1053507, 1590589, 1655511, 2080001, 2458183, 3862859, 4771767, 6240003, 7374549, 11588577, 27040013, 81120039]

約数ペア:

[(1, 81120039), (3, 27040013), (7, 11588577), (11, 7374549), (13, 6240003), (17, 4771767), (21, 3862859), (33, 2458183), (39, 2080001), (49, 1655511), (51, 1590589), (77, 1053507), (91, 891429), (119, 681681), (143, 567273), (147, 551837), (187, 433797), (221, 367059), (227, 357357), (231, 351169), (273, 297143), (357, 227227), (429, 189091), (539, 150501), (561, 144599), (637, 127347), (663, 122353), (681, 119119), (833, 97383), (1001, 81039), (1309, 61971), (1547, 52437), (1589, 51051), (1617, 50167), (1911, 42449), (2431, 33369), (2497, 32487), (2499, 32461), (2951, 27489), (3003, 27013), (3859, 21021), (3927, 20657), (4641, 17479), (4767, 17017), (7007, 11577), (7293, 11123), (7491, 10829), (8853, 9163)]