391499992

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{9341}}^1$

素因数の和:9404

約数の個数: 48

約数和(自身を含む): 820601280

約数和(自身を除く): 429101288

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 169, 248, 338, 403, 676, 806, 1352, 1612, 3224, 5239, 9341, 10478, 18682, 20956, 37364, 41912, 74728, 121433, 242866, 289571, 485732, 579142, 971464, 1158284, 1578629, 2316568, 3157258, 3764423, 6314516, 7528846, 12629032, 15057692, 30115384, 48937499, 97874998, 195749996, 391499992]

約数ペア:

[(1, 391499992), (2, 195749996), (4, 97874998), (8, 48937499), (13, 30115384), (26, 15057692), (31, 12629032), (52, 7528846), (62, 6314516), (104, 3764423), (124, 3157258), (169, 2316568), (248, 1578629), (338, 1158284), (403, 971464), (676, 579142), (806, 485732), (1352, 289571), (1612, 242866), (3224, 121433), (5239, 74728), (9341, 41912), (10478, 37364), (18682, 20956)]