51107980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{431}}^1$

素因数の和:476

約数の個数: 108

約数和(自身を含む): 137549664

約数和(自身を除く): 86441684

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 121, 140, 154, 196, 220, 242, 245, 308, 385, 431, 484, 490, 539, 605, 770, 847, 862, 980, 1078, 1210, 1540, 1694, 1724, 2155, 2156, 2420, 2695, 3017, 3388, 4235, 4310, 4741, 5390, 5929, 6034, 8470, 8620, 9482, 10780, 11858, 12068, 15085, 16940, 18964, 21119, 23705, 23716, 29645, 30170, 33187, 42238, 47410, 52151, 59290, 60340, 66374, 84476, 94820, 104302, 105595, 118580, 132748, 165935, 208604, 211190, 232309, 260755, 331870, 365057, 422380, 464618, 521510, 663740, 730114, 929236, 1043020, 1161545, 1460228, 1825285, 2323090, 2555399, 3650570, 4646180, 5110798, 7301140, 10221596, 12776995, 25553990, 51107980]

約数ペア:

[(1, 51107980), (2, 25553990), (4, 12776995), (5, 10221596), (7, 7301140), (10, 5110798), (11, 4646180), (14, 3650570), (20, 2555399), (22, 2323090), (28, 1825285), (35, 1460228), (44, 1161545), (49, 1043020), (55, 929236), (70, 730114), (77, 663740), (98, 521510), (110, 464618), (121, 422380), (140, 365057), (154, 331870), (196, 260755), (220, 232309), (242, 211190), (245, 208604), (308, 165935), (385, 132748), (431, 118580), (484, 105595), (490, 104302), (539, 94820), (605, 84476), (770, 66374), (847, 60340), (862, 59290), (980, 52151), (1078, 47410), (1210, 42238), (1540, 33187), (1694, 30170), (1724, 29645), (2155, 23716), (2156, 23705), (2420, 21119), (2695, 18964), (3017, 16940), (3388, 15085), (4235, 12068), (4310, 11858), (4741, 10780), (5390, 9482), (5929, 8620), (6034, 8470)]