638570520

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{84467}}^1$

素因数の和:84494

約数の個数: 128

約数和(自身を含む): 2432678400

約数和(自身を除く): 1794107880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 84467, 168934, 253401, 337868, 422335, 506802, 591269, 675736, 760203, 844670, 1013604, 1182538, 1267005, 1520406, 1689340, 1773807, 2027208, 2280609, 2365076, 2534010, 2956345, 3040812, 3378680, 3547614, 3801015, 4561218, 4730152, 5068020, 5321421, 5912690, 6081624, 7095228, 7602030, 8869035, 9122436, 10136040, 10642842, 11403045, 11825380, 14190456, 15204060, 15964263, 17738070, 18244872, 21285684, 22806090, 23650760, 26607105, 30408120, 31928526, 35476140, 42571368, 45612180, 53214210, 63857052, 70952280, 79821315, 91224360, 106428420, 127714104, 159642630, 212856840, 319285260, 638570520]

約数ペア:

[(1, 638570520), (2, 319285260), (3, 212856840), (4, 159642630), (5, 127714104), (6, 106428420), (7, 91224360), (8, 79821315), (9, 70952280), (10, 63857052), (12, 53214210), (14, 45612180), (15, 42571368), (18, 35476140), (20, 31928526), (21, 30408120), (24, 26607105), (27, 23650760), (28, 22806090), (30, 21285684), (35, 18244872), (36, 17738070), (40, 15964263), (42, 15204060), (45, 14190456), (54, 11825380), (56, 11403045), (60, 10642842), (63, 10136040), (70, 9122436), (72, 8869035), (84, 7602030), (90, 7095228), (105, 6081624), (108, 5912690), (120, 5321421), (126, 5068020), (135, 4730152), (140, 4561218), (168, 3801015), (180, 3547614), (189, 3378680), (210, 3040812), (216, 2956345), (252, 2534010), (270, 2365076), (280, 2280609), (315, 2027208), (360, 1773807), (378, 1689340), (420, 1520406), (504, 1267005), (540, 1182538), (630, 1013604), (756, 844670), (840, 760203), (945, 675736), (1080, 591269), (1260, 506802), (1512, 422335), (1890, 337868), (2520, 253401), (3780, 168934), (7560, 84467)]