77972778

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1153}}^1$

素因数の和:1208

約数の個数: 72

約数和(自身を含む): 193435788

約数和(自身を除く): 115463010

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 289, 306, 442, 578, 663, 867, 1153, 1326, 1734, 1989, 2306, 2601, 3459, 3757, 3978, 5202, 6918, 7514, 10377, 11271, 14989, 19601, 20754, 22542, 29978, 33813, 39202, 44967, 58803, 67626, 89934, 117606, 134901, 176409, 254813, 269802, 333217, 352818, 509626, 666434, 764439, 999651, 1528878, 1999302, 2293317, 2998953, 4331821, 4586634, 5997906, 8663642, 12995463, 25990926, 38986389, 77972778]

約数ペア:

[(1, 77972778), (2, 38986389), (3, 25990926), (6, 12995463), (9, 8663642), (13, 5997906), (17, 4586634), (18, 4331821), (26, 2998953), (34, 2293317), (39, 1999302), (51, 1528878), (78, 999651), (102, 764439), (117, 666434), (153, 509626), (221, 352818), (234, 333217), (289, 269802), (306, 254813), (442, 176409), (578, 134901), (663, 117606), (867, 89934), (1153, 67626), (1326, 58803), (1734, 44967), (1989, 39202), (2306, 33813), (2601, 29978), (3459, 22542), (3757, 20754), (3978, 19601), (5202, 14989), (6918, 11271), (7514, 10377)]