81878775

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1627}}^1$

素因数の和:1712

約数の個数: 48

約数和(自身を含む): 150192768

約数和(自身を除く): 68313993

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 61, 75, 165, 183, 275, 305, 671, 825, 915, 1525, 1627, 2013, 3355, 4575, 4881, 8135, 10065, 16775, 17897, 24405, 40675, 50325, 53691, 89485, 99247, 122025, 268455, 297741, 447425, 496235, 1091717, 1342275, 1488705, 2481175, 3275151, 5458585, 7443525, 16375755, 27292925, 81878775]

約数ペア:

[(1, 81878775), (3, 27292925), (5, 16375755), (11, 7443525), (15, 5458585), (25, 3275151), (33, 2481175), (55, 1488705), (61, 1342275), (75, 1091717), (165, 496235), (183, 447425), (275, 297741), (305, 268455), (671, 122025), (825, 99247), (915, 89485), (1525, 53691), (1627, 50325), (2013, 40675), (3355, 24405), (4575, 17897), (4881, 16775), (8135, 10065)]