68686240

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{8761}}^1$

素因数の和:8790

約数の個数: 72

約数和(自身を含む): 188786052

約数和(自身を除く): 120099812

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 8761, 17522, 35044, 43805, 61327, 70088, 87610, 122654, 140176, 175220, 245308, 280352, 306635, 350440, 429289, 490616, 613270, 700880, 858578, 981232, 1226540, 1401760, 1717156, 1962464, 2146445, 2453080, 3434312, 4292890, 4906160, 6868624, 8585780, 9812320, 13737248, 17171560, 34343120, 68686240]

約数ペア:

[(1, 68686240), (2, 34343120), (4, 17171560), (5, 13737248), (7, 9812320), (8, 8585780), (10, 6868624), (14, 4906160), (16, 4292890), (20, 3434312), (28, 2453080), (32, 2146445), (35, 1962464), (40, 1717156), (49, 1401760), (56, 1226540), (70, 981232), (80, 858578), (98, 700880), (112, 613270), (140, 490616), (160, 429289), (196, 350440), (224, 306635), (245, 280352), (280, 245308), (392, 175220), (490, 140176), (560, 122654), (784, 87610), (980, 70088), (1120, 61327), (1568, 43805), (1960, 35044), (3920, 17522), (7840, 8761)]