2785228420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1381}}^1\times {\mathrm{7757}}^1$

素因数の和:9160

約数の個数: 48

約数和(自身を含む): 6304274928

約数和(自身を除く): 3519046508

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1381, 2762, 5524, 6905, 7757, 13810, 15514, 17953, 27620, 31028, 35906, 38785, 71812, 77570, 89765, 100841, 155140, 179530, 201682, 359060, 403364, 504205, 1008410, 2016820, 10712417, 21424834, 42849668, 53562085, 107124170, 139261421, 214248340, 278522842, 557045684, 696307105, 1392614210, 2785228420]

約数ペア:

[(1, 2785228420), (2, 1392614210), (4, 696307105), (5, 557045684), (10, 278522842), (13, 214248340), (20, 139261421), (26, 107124170), (52, 53562085), (65, 42849668), (130, 21424834), (260, 10712417), (1381, 2016820), (2762, 1008410), (5524, 504205), (6905, 403364), (7757, 359060), (13810, 201682), (15514, 179530), (17953, 155140), (27620, 100841), (31028, 89765), (35906, 77570), (38785, 71812)]