689351740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{461}}^1\times {\mathrm{971}}^1$

素因数の和:1459

約数の個数: 96

約数和(自身を含む): 1810626048

約数和(自身を除く): 1121274308

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 461, 770, 922, 971, 1540, 1844, 1942, 2305, 3227, 3884, 4610, 4855, 5071, 6454, 6797, 9220, 9710, 10142, 10681, 12908, 13594, 16135, 19420, 20284, 21362, 25355, 27188, 32270, 33985, 35497, 42724, 50710, 53405, 64540, 67970, 70994, 74767, 101420, 106810, 135940, 141988, 149534, 177485, 213620, 299068, 354970, 373835, 447631, 709940, 747670, 895262, 1495340, 1790524, 2238155, 3133417, 4476310, 4923941, 6266834, 8952620, 9847882, 12533668, 15667085, 19695764, 24619705, 31334170, 34467587, 49239410, 62668340, 68935174, 98478820, 137870348, 172337935, 344675870, 689351740]

約数ペア:

[(1, 689351740), (2, 344675870), (4, 172337935), (5, 137870348), (7, 98478820), (10, 68935174), (11, 62668340), (14, 49239410), (20, 34467587), (22, 31334170), (28, 24619705), (35, 19695764), (44, 15667085), (55, 12533668), (70, 9847882), (77, 8952620), (110, 6266834), (140, 4923941), (154, 4476310), (220, 3133417), (308, 2238155), (385, 1790524), (461, 1495340), (770, 895262), (922, 747670), (971, 709940), (1540, 447631), (1844, 373835), (1942, 354970), (2305, 299068), (3227, 213620), (3884, 177485), (4610, 149534), (4855, 141988), (5071, 135940), (6454, 106810), (6797, 101420), (9220, 74767), (9710, 70994), (10142, 67970), (10681, 64540), (12908, 53405), (13594, 50710), (16135, 42724), (19420, 35497), (20284, 33985), (21362, 32270), (25355, 27188)]