208857320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{3121}}^1$

素因数の和:3378

約数の個数: 64

約数和(自身を含む): 539481600

約数和(自身を除く): 330624280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 239, 280, 478, 956, 1195, 1673, 1912, 2390, 3121, 3346, 4780, 6242, 6692, 8365, 9560, 12484, 13384, 15605, 16730, 21847, 24968, 31210, 33460, 43694, 62420, 66920, 87388, 109235, 124840, 174776, 218470, 436940, 745919, 873880, 1491838, 2983676, 3729595, 5221433, 5967352, 7459190, 10442866, 14918380, 20885732, 26107165, 29836760, 41771464, 52214330, 104428660, 208857320]

約数ペア:

[(1, 208857320), (2, 104428660), (4, 52214330), (5, 41771464), (7, 29836760), (8, 26107165), (10, 20885732), (14, 14918380), (20, 10442866), (28, 7459190), (35, 5967352), (40, 5221433), (56, 3729595), (70, 2983676), (140, 1491838), (239, 873880), (280, 745919), (478, 436940), (956, 218470), (1195, 174776), (1673, 124840), (1912, 109235), (2390, 87388), (3121, 66920), (3346, 62420), (4780, 43694), (6242, 33460), (6692, 31210), (8365, 24968), (9560, 21847), (12484, 16730), (13384, 15605)]