20674680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{457}}^1$

素因数の和:513

約数の個数: 128

約数和(自身を含む): 69249600

約数和(自身を除く): 48574920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 29, 30, 39, 40, 52, 58, 60, 65, 78, 87, 104, 116, 120, 130, 145, 156, 174, 195, 232, 260, 290, 312, 348, 377, 390, 435, 457, 520, 580, 696, 754, 780, 870, 914, 1131, 1160, 1371, 1508, 1560, 1740, 1828, 1885, 2262, 2285, 2742, 3016, 3480, 3656, 3770, 4524, 4570, 5484, 5655, 5941, 6855, 7540, 9048, 9140, 10968, 11310, 11882, 13253, 13710, 15080, 17823, 18280, 22620, 23764, 26506, 27420, 29705, 35646, 39759, 45240, 47528, 53012, 54840, 59410, 66265, 71292, 79518, 89115, 106024, 118820, 132530, 142584, 159036, 172289, 178230, 198795, 237640, 265060, 318072, 344578, 356460, 397590, 516867, 530120, 689156, 712920, 795180, 861445, 1033734, 1378312, 1590360, 1722890, 2067468, 2584335, 3445780, 4134936, 5168670, 6891560, 10337340, 20674680]

約数ペア:

[(1, 20674680), (2, 10337340), (3, 6891560), (4, 5168670), (5, 4134936), (6, 3445780), (8, 2584335), (10, 2067468), (12, 1722890), (13, 1590360), (15, 1378312), (20, 1033734), (24, 861445), (26, 795180), (29, 712920), (30, 689156), (39, 530120), (40, 516867), (52, 397590), (58, 356460), (60, 344578), (65, 318072), (78, 265060), (87, 237640), (104, 198795), (116, 178230), (120, 172289), (130, 159036), (145, 142584), (156, 132530), (174, 118820), (195, 106024), (232, 89115), (260, 79518), (290, 71292), (312, 66265), (348, 59410), (377, 54840), (390, 53012), (435, 47528), (457, 45240), (520, 39759), (580, 35646), (696, 29705), (754, 27420), (780, 26506), (870, 23764), (914, 22620), (1131, 18280), (1160, 17823), (1371, 15080), (1508, 13710), (1560, 13253), (1740, 11882), (1828, 11310), (1885, 10968), (2262, 9140), (2285, 9048), (2742, 7540), (3016, 6855), (3480, 5941), (3656, 5655), (3770, 5484), (4524, 4570)]