72975903

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1279}}^1$

素因数の和:1332

約数の個数: 64

約数和(自身を含む): 137625600

約数和(自身を除く): 64649697

約数列:

[1, 3, 7, 11, 13, 19, 21, 33, 39, 57, 77, 91, 133, 143, 209, 231, 247, 273, 399, 429, 627, 741, 1001, 1279, 1463, 1729, 2717, 3003, 3837, 4389, 5187, 8151, 8953, 14069, 16627, 19019, 24301, 26859, 42207, 49881, 57057, 72903, 98483, 116389, 170107, 182897, 267311, 295449, 315913, 349167, 510321, 548691, 801933, 947739, 1280279, 1871177, 2211391, 3475043, 3840837, 5613531, 6634173, 10425129, 24325301, 72975903]

約数ペア:

[(1, 72975903), (3, 24325301), (7, 10425129), (11, 6634173), (13, 5613531), (19, 3840837), (21, 3475043), (33, 2211391), (39, 1871177), (57, 1280279), (77, 947739), (91, 801933), (133, 548691), (143, 510321), (209, 349167), (231, 315913), (247, 295449), (273, 267311), (399, 182897), (429, 170107), (627, 116389), (741, 98483), (1001, 72903), (1279, 57057), (1463, 49881), (1729, 42207), (2717, 26859), (3003, 24301), (3837, 19019), (4389, 16627), (5187, 14069), (8151, 8953)]