85911700

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:314

約数の個数: 108

約数和(自身を含む): 220415580

約数和(自身を除く): 134503880

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 89, 98, 100, 140, 175, 178, 196, 197, 245, 350, 356, 394, 445, 490, 623, 700, 788, 890, 980, 985, 1225, 1246, 1379, 1780, 1970, 2225, 2450, 2492, 2758, 3115, 3940, 4361, 4450, 4900, 4925, 5516, 6230, 6895, 8722, 8900, 9653, 9850, 12460, 13790, 15575, 17444, 17533, 19306, 19700, 21805, 27580, 31150, 34475, 35066, 38612, 43610, 48265, 62300, 68950, 70132, 87220, 87665, 96530, 109025, 122731, 137900, 175330, 193060, 218050, 241325, 245462, 350660, 436100, 438325, 482650, 490924, 613655, 859117, 876650, 965300, 1227310, 1718234, 1753300, 2454620, 3068275, 3436468, 4295585, 6136550, 8591170, 12273100, 17182340, 21477925, 42955850, 85911700]

約数ペア:

[(1, 85911700), (2, 42955850), (4, 21477925), (5, 17182340), (7, 12273100), (10, 8591170), (14, 6136550), (20, 4295585), (25, 3436468), (28, 3068275), (35, 2454620), (49, 1753300), (50, 1718234), (70, 1227310), (89, 965300), (98, 876650), (100, 859117), (140, 613655), (175, 490924), (178, 482650), (196, 438325), (197, 436100), (245, 350660), (350, 245462), (356, 241325), (394, 218050), (445, 193060), (490, 175330), (623, 137900), (700, 122731), (788, 109025), (890, 96530), (980, 87665), (985, 87220), (1225, 70132), (1246, 68950), (1379, 62300), (1780, 48265), (1970, 43610), (2225, 38612), (2450, 35066), (2492, 34475), (2758, 31150), (3115, 27580), (3940, 21805), (4361, 19700), (4450, 19306), (4900, 17533), (4925, 17444), (5516, 15575), (6230, 13790), (6895, 12460), (8722, 9850), (8900, 9653)]