25553990

素因数分解:

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

素因数の和:474

約数の個数: 72

約数和(自身を含む): 58949856

約数和(自身を除く): 33395866

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 121, 154, 242, 245, 385, 431, 490, 539, 605, 770, 847, 862, 1078, 1210, 1694, 2155, 2695, 3017, 4235, 4310, 4741, 5390, 5929, 6034, 8470, 9482, 11858, 15085, 21119, 23705, 29645, 30170, 33187, 42238, 47410, 52151, 59290, 66374, 104302, 105595, 165935, 211190, 232309, 260755, 331870, 365057, 464618, 521510, 730114, 1161545, 1825285, 2323090, 2555399, 3650570, 5110798, 12776995, 25553990]

約数ペア:

[(1, 25553990), (2, 12776995), (5, 5110798), (7, 3650570), (10, 2555399), (11, 2323090), (14, 1825285), (22, 1161545), (35, 730114), (49, 521510), (55, 464618), (70, 365057), (77, 331870), (98, 260755), (110, 232309), (121, 211190), (154, 165935), (242, 105595), (245, 104302), (385, 66374), (431, 59290), (490, 52151), (539, 47410), (605, 42238), (770, 33187), (847, 30170), (862, 29645), (1078, 23705), (1210, 21119), (1694, 15085), (2155, 11858), (2695, 9482), (3017, 8470), (4235, 6034), (4310, 5929), (4741, 5390)]