77792778

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1571}}^1$

素因数の和:1720

約数の個数: 64

約数和(自身を含む): 199203840

約数和(自身を除く): 121411062

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 131, 189, 262, 378, 393, 786, 917, 1179, 1571, 1834, 2358, 2751, 3142, 3537, 4713, 5502, 7074, 8253, 9426, 10997, 14139, 16506, 21994, 24759, 28278, 32991, 42417, 49518, 65982, 84834, 98973, 197946, 205801, 296919, 411602, 593838, 617403, 1234806, 1440607, 1852209, 2881214, 3704418, 4321821, 5556627, 8643642, 11113254, 12965463, 25930926, 38896389, 77792778]

約数ペア:

[(1, 77792778), (2, 38896389), (3, 25930926), (6, 12965463), (7, 11113254), (9, 8643642), (14, 5556627), (18, 4321821), (21, 3704418), (27, 2881214), (42, 1852209), (54, 1440607), (63, 1234806), (126, 617403), (131, 593838), (189, 411602), (262, 296919), (378, 205801), (393, 197946), (786, 98973), (917, 84834), (1179, 65982), (1571, 49518), (1834, 42417), (2358, 32991), (2751, 28278), (3142, 24759), (3537, 21994), (4713, 16506), (5502, 14139), (7074, 10997), (8253, 9426)]