80878356

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4019}}^1$

素因数の和:4085

約数の個数: 72

約数和(自身を含む): 225345120

約数和(自身を除く): 144466764

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 43, 52, 78, 86, 117, 129, 156, 172, 234, 258, 387, 468, 516, 559, 774, 1118, 1548, 1677, 2236, 3354, 4019, 5031, 6708, 8038, 10062, 12057, 16076, 20124, 24114, 36171, 48228, 52247, 72342, 104494, 144684, 156741, 172817, 208988, 313482, 345634, 470223, 518451, 626964, 691268, 940446, 1036902, 1555353, 1880892, 2073804, 2246621, 3110706, 4493242, 6221412, 6739863, 8986484, 13479726, 20219589, 26959452, 40439178, 80878356]

約数ペア:

[(1, 80878356), (2, 40439178), (3, 26959452), (4, 20219589), (6, 13479726), (9, 8986484), (12, 6739863), (13, 6221412), (18, 4493242), (26, 3110706), (36, 2246621), (39, 2073804), (43, 1880892), (52, 1555353), (78, 1036902), (86, 940446), (117, 691268), (129, 626964), (156, 518451), (172, 470223), (234, 345634), (258, 313482), (387, 208988), (468, 172817), (516, 156741), (559, 144684), (774, 104494), (1118, 72342), (1548, 52247), (1677, 48228), (2236, 36171), (3354, 24114), (4019, 20124), (5031, 16076), (6708, 12057), (8038, 10062)]