311955228

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{2789}}^1$

素因数の和:3051

約数の個数: 72

約数和(自身を含む): 853070400

約数和(自身を除く): 541115172

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 239, 468, 478, 717, 956, 1434, 2151, 2789, 2868, 3107, 4302, 5578, 6214, 8367, 8604, 9321, 11156, 12428, 16734, 18642, 25101, 27963, 33468, 36257, 37284, 50202, 55926, 72514, 100404, 108771, 111852, 145028, 217542, 326313, 435084, 652626, 666571, 1305252, 1333142, 1999713, 2666284, 3999426, 5999139, 7998852, 8665423, 11998278, 17330846, 23996556, 25996269, 34661692, 51992538, 77988807, 103985076, 155977614, 311955228]

約数ペア:

[(1, 311955228), (2, 155977614), (3, 103985076), (4, 77988807), (6, 51992538), (9, 34661692), (12, 25996269), (13, 23996556), (18, 17330846), (26, 11998278), (36, 8665423), (39, 7998852), (52, 5999139), (78, 3999426), (117, 2666284), (156, 1999713), (234, 1333142), (239, 1305252), (468, 666571), (478, 652626), (717, 435084), (956, 326313), (1434, 217542), (2151, 145028), (2789, 111852), (2868, 108771), (3107, 100404), (4302, 72514), (5578, 55926), (6214, 50202), (8367, 37284), (8604, 36257), (9321, 33468), (11156, 27963), (12428, 25101), (16734, 18642)]