681716860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{941}}^1$

素因数の和:1087

約数の個数: 96

約数和(自身を含む): 1623706560

約数和(自身を除く): 941989700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 89, 110, 148, 178, 185, 220, 356, 370, 407, 445, 740, 814, 890, 941, 979, 1628, 1780, 1882, 1958, 2035, 3293, 3764, 3916, 4070, 4705, 4895, 6586, 8140, 9410, 9790, 10351, 13172, 16465, 18820, 19580, 20702, 32930, 34817, 36223, 41404, 51755, 65860, 69634, 72446, 83749, 103510, 139268, 144892, 167498, 174085, 181115, 207020, 334996, 348170, 362230, 382987, 418745, 696340, 724460, 765974, 837490, 921239, 1531948, 1674980, 1842478, 1914935, 3098713, 3684956, 3829870, 4606195, 6197426, 7659740, 9212390, 12394852, 15493565, 18424780, 30987130, 34085843, 61974260, 68171686, 136343372, 170429215, 340858430, 681716860]

約数ペア:

[(1, 681716860), (2, 340858430), (4, 170429215), (5, 136343372), (10, 68171686), (11, 61974260), (20, 34085843), (22, 30987130), (37, 18424780), (44, 15493565), (55, 12394852), (74, 9212390), (89, 7659740), (110, 6197426), (148, 4606195), (178, 3829870), (185, 3684956), (220, 3098713), (356, 1914935), (370, 1842478), (407, 1674980), (445, 1531948), (740, 921239), (814, 837490), (890, 765974), (941, 724460), (979, 696340), (1628, 418745), (1780, 382987), (1882, 362230), (1958, 348170), (2035, 334996), (3293, 207020), (3764, 181115), (3916, 174085), (4070, 167498), (4705, 144892), (4895, 139268), (6586, 103510), (8140, 83749), (9410, 72446), (9790, 69634), (10351, 65860), (13172, 51755), (16465, 41404), (18820, 36223), (19580, 34817), (20702, 32930)]