81278808

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{13711}}^1$

素因数の和:13752

約数の個数: 64

約数和(自身を含む): 230361600

約数和(自身を除く): 149082792

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 52, 57, 76, 78, 104, 114, 152, 156, 228, 247, 312, 456, 494, 741, 988, 1482, 1976, 2964, 5928, 13711, 27422, 41133, 54844, 82266, 109688, 164532, 178243, 260509, 329064, 356486, 521018, 534729, 712972, 781527, 1042036, 1069458, 1425944, 1563054, 2084072, 2138916, 3126108, 3386617, 4277832, 6252216, 6773234, 10159851, 13546468, 20319702, 27092936, 40639404, 81278808]

約数ペア:

[(1, 81278808), (2, 40639404), (3, 27092936), (4, 20319702), (6, 13546468), (8, 10159851), (12, 6773234), (13, 6252216), (19, 4277832), (24, 3386617), (26, 3126108), (38, 2138916), (39, 2084072), (52, 1563054), (57, 1425944), (76, 1069458), (78, 1042036), (104, 781527), (114, 712972), (152, 534729), (156, 521018), (228, 356486), (247, 329064), (312, 260509), (456, 178243), (494, 164532), (741, 109688), (988, 82266), (1482, 54844), (1976, 41133), (2964, 27422), (5928, 13711)]