81225846

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4889}}^1$

素因数の和:4981

約数の個数: 48

約数和(自身を含む): 192235680

約数和(自身を除く): 111009834

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 71, 78, 117, 142, 213, 234, 426, 639, 923, 1278, 1846, 2769, 4889, 5538, 8307, 9778, 14667, 16614, 29334, 44001, 63557, 88002, 127114, 190671, 347119, 381342, 572013, 694238, 1041357, 1144026, 2082714, 3124071, 4512547, 6248142, 9025094, 13537641, 27075282, 40612923, 81225846]

約数ペア:

[(1, 81225846), (2, 40612923), (3, 27075282), (6, 13537641), (9, 9025094), (13, 6248142), (18, 4512547), (26, 3124071), (39, 2082714), (71, 1144026), (78, 1041357), (117, 694238), (142, 572013), (213, 381342), (234, 347119), (426, 190671), (639, 127114), (923, 88002), (1278, 63557), (1846, 44001), (2769, 29334), (4889, 16614), (5538, 14667), (8307, 9778)]