81253744

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2089}}^1$

素因数の和:2138

約数の個数: 80

約数和(自身を含む): 195924960

約数和(自身を除く): 114671216

約数列:

[1, 2, 4, 8, 11, 13, 16, 17, 22, 26, 34, 44, 52, 68, 88, 104, 136, 143, 176, 187, 208, 221, 272, 286, 374, 442, 572, 748, 884, 1144, 1496, 1768, 2089, 2288, 2431, 2992, 3536, 4178, 4862, 8356, 9724, 16712, 19448, 22979, 27157, 33424, 35513, 38896, 45958, 54314, 71026, 91916, 108628, 142052, 183832, 217256, 284104, 298727, 367664, 390643, 434512, 461669, 568208, 597454, 781286, 923338, 1194908, 1562572, 1846676, 2389816, 3125144, 3693352, 4779632, 5078359, 6250288, 7386704, 10156718, 20313436, 40626872, 81253744]

約数ペア:

[(1, 81253744), (2, 40626872), (4, 20313436), (8, 10156718), (11, 7386704), (13, 6250288), (16, 5078359), (17, 4779632), (22, 3693352), (26, 3125144), (34, 2389816), (44, 1846676), (52, 1562572), (68, 1194908), (88, 923338), (104, 781286), (136, 597454), (143, 568208), (176, 461669), (187, 434512), (208, 390643), (221, 367664), (272, 298727), (286, 284104), (374, 217256), (442, 183832), (572, 142052), (748, 108628), (884, 91916), (1144, 71026), (1496, 54314), (1768, 45958), (2089, 38896), (2288, 35513), (2431, 33424), (2992, 27157), (3536, 22979), (4178, 19448), (4862, 16712), (8356, 9724)]