81810885

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:127

約数の個数: 128

約数和(自身を含む): 165473280

約数和(自身を除く): 83662395

約数列:

[1, 3, 5, 13, 15, 17, 23, 29, 37, 39, 51, 65, 69, 85, 87, 111, 115, 145, 185, 195, 221, 255, 299, 345, 377, 391, 435, 481, 493, 555, 629, 663, 667, 851, 897, 1073, 1105, 1131, 1173, 1443, 1479, 1495, 1885, 1887, 1955, 2001, 2405, 2465, 2553, 3145, 3219, 3315, 3335, 4255, 4485, 5083, 5365, 5655, 5865, 6409, 7215, 7395, 8177, 8671, 9435, 10005, 11063, 11339, 12765, 13949, 14467, 15249, 16095, 18241, 19227, 24531, 24679, 25415, 26013, 32045, 33189, 34017, 40885, 41847, 43355, 43401, 54723, 55315, 56695, 69745, 72335, 74037, 76245, 91205, 96135, 122655, 123395, 130065, 147407, 165945, 170085, 188071, 209235, 217005, 237133, 273615, 320827, 370185, 419543, 442221, 564213, 711399, 737035, 940355, 962481, 1185665, 1258629, 1604135, 2097715, 2211105, 2821065, 3556995, 4812405, 5454059, 6293145, 16362177, 27270295, 81810885]

約数ペア:

[(1, 81810885), (3, 27270295), (5, 16362177), (13, 6293145), (15, 5454059), (17, 4812405), (23, 3556995), (29, 2821065), (37, 2211105), (39, 2097715), (51, 1604135), (65, 1258629), (69, 1185665), (85, 962481), (87, 940355), (111, 737035), (115, 711399), (145, 564213), (185, 442221), (195, 419543), (221, 370185), (255, 320827), (299, 273615), (345, 237133), (377, 217005), (391, 209235), (435, 188071), (481, 170085), (493, 165945), (555, 147407), (629, 130065), (663, 123395), (667, 122655), (851, 96135), (897, 91205), (1073, 76245), (1105, 74037), (1131, 72335), (1173, 69745), (1443, 56695), (1479, 55315), (1495, 54723), (1885, 43401), (1887, 43355), (1955, 41847), (2001, 40885), (2405, 34017), (2465, 33189), (2553, 32045), (3145, 26013), (3219, 25415), (3315, 24679), (3335, 24531), (4255, 19227), (4485, 18241), (5083, 16095), (5365, 15249), (5655, 14467), (5865, 13949), (6409, 12765), (7215, 11339), (7395, 11063), (8177, 10005), (8671, 9435)]