494998660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{881}}^1\times {\mathrm{2161}}^1$

素因数の和:3064

約数の個数: 48

約数和(自身を含む): 1121247792

約数和(自身を除く): 626249132

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 881, 1762, 2161, 3524, 4322, 4405, 8644, 8810, 10805, 11453, 17620, 21610, 22906, 28093, 43220, 45812, 56186, 57265, 112372, 114530, 140465, 229060, 280930, 561860, 1903841, 3807682, 7615364, 9519205, 19038410, 24749933, 38076820, 49499866, 98999732, 123749665, 247499330, 494998660]

約数ペア:

[(1, 494998660), (2, 247499330), (4, 123749665), (5, 98999732), (10, 49499866), (13, 38076820), (20, 24749933), (26, 19038410), (52, 9519205), (65, 7615364), (130, 3807682), (260, 1903841), (881, 561860), (1762, 280930), (2161, 229060), (3524, 140465), (4322, 114530), (4405, 112372), (8644, 57265), (8810, 56186), (10805, 45812), (11453, 43220), (17620, 28093), (21610, 22906)]