208793416

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{389}}^1\times {\mathrm{397}}^1$

素因数の和:818

約数の個数: 48

約数和(自身を含む): 426078900

約数和(自身を除く): 217285484

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 389, 397, 676, 778, 794, 1352, 1556, 1588, 3112, 3176, 5057, 5161, 10114, 10322, 20228, 20644, 40456, 41288, 65741, 67093, 131482, 134186, 154433, 262964, 268372, 308866, 525928, 536744, 617732, 1235464, 2007629, 4015258, 8030516, 16061032, 26099177, 52198354, 104396708, 208793416]

約数ペア:

[(1, 208793416), (2, 104396708), (4, 52198354), (8, 26099177), (13, 16061032), (26, 8030516), (52, 4015258), (104, 2007629), (169, 1235464), (338, 617732), (389, 536744), (397, 525928), (676, 308866), (778, 268372), (794, 262964), (1352, 154433), (1556, 134186), (1588, 131482), (3112, 67093), (3176, 65741), (5057, 41288), (5161, 40456), (10114, 20644), (10322, 20228)]