8155420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4481}}^1$

素因数の和:4510

約数の個数: 48

約数和(自身を含む): 21083328

約数和(自身を除く): 12927908

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 4481, 8962, 17924, 22405, 31367, 44810, 58253, 62734, 89620, 116506, 125468, 156835, 233012, 291265, 313670, 407771, 582530, 627340, 815542, 1165060, 1631084, 2038855, 4077710, 8155420]

約数ペア:

[(1, 8155420), (2, 4077710), (4, 2038855), (5, 1631084), (7, 1165060), (10, 815542), (13, 627340), (14, 582530), (20, 407771), (26, 313670), (28, 291265), (35, 233012), (52, 156835), (65, 125468), (70, 116506), (91, 89620), (130, 62734), (140, 58253), (182, 44810), (260, 31367), (364, 22405), (455, 17924), (910, 8962), (1820, 4481)]