20674056

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:155

約数の個数: 128

約数和(自身を含む): 60318720

約数和(自身を除く): 39644664

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 23, 24, 26, 39, 43, 46, 52, 67, 69, 78, 86, 92, 104, 129, 134, 138, 156, 172, 184, 201, 258, 268, 276, 299, 312, 344, 402, 516, 536, 552, 559, 598, 804, 871, 897, 989, 1032, 1118, 1196, 1541, 1608, 1677, 1742, 1794, 1978, 2236, 2392, 2613, 2881, 2967, 3082, 3354, 3484, 3588, 3956, 4472, 4623, 5226, 5762, 5934, 6164, 6708, 6968, 7176, 7912, 8643, 9246, 10452, 11524, 11868, 12328, 12857, 13416, 17286, 18492, 20033, 20904, 23048, 23736, 25714, 34572, 36984, 37453, 38571, 40066, 51428, 60099, 66263, 69144, 74906, 77142, 80132, 102856, 112359, 120198, 132526, 149812, 154284, 160264, 198789, 224718, 240396, 265052, 299624, 308568, 397578, 449436, 480792, 530104, 795156, 861419, 898872, 1590312, 1722838, 2584257, 3445676, 5168514, 6891352, 10337028, 20674056]

約数ペア:

[(1, 20674056), (2, 10337028), (3, 6891352), (4, 5168514), (6, 3445676), (8, 2584257), (12, 1722838), (13, 1590312), (23, 898872), (24, 861419), (26, 795156), (39, 530104), (43, 480792), (46, 449436), (52, 397578), (67, 308568), (69, 299624), (78, 265052), (86, 240396), (92, 224718), (104, 198789), (129, 160264), (134, 154284), (138, 149812), (156, 132526), (172, 120198), (184, 112359), (201, 102856), (258, 80132), (268, 77142), (276, 74906), (299, 69144), (312, 66263), (344, 60099), (402, 51428), (516, 40066), (536, 38571), (552, 37453), (559, 36984), (598, 34572), (804, 25714), (871, 23736), (897, 23048), (989, 20904), (1032, 20033), (1118, 18492), (1196, 17286), (1541, 13416), (1608, 12857), (1677, 12328), (1742, 11868), (1794, 11524), (1978, 10452), (2236, 9246), (2392, 8643), (2613, 7912), (2881, 7176), (2967, 6968), (3082, 6708), (3354, 6164), (3484, 5934), (3588, 5762), (3956, 5226), (4472, 4623)]