399074780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{739}}^1$

素因数の和:859

約数の個数: 96

約数和(自身を含む): 946821120

約数和(自身を除く): 547746340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 67, 124, 130, 134, 155, 260, 268, 310, 335, 403, 620, 670, 739, 806, 871, 1340, 1478, 1612, 1742, 2015, 2077, 2956, 3484, 3695, 4030, 4154, 4355, 7390, 8060, 8308, 8710, 9607, 10385, 14780, 17420, 19214, 20770, 22909, 27001, 38428, 41540, 45818, 48035, 49513, 54002, 91636, 96070, 99026, 108004, 114545, 135005, 192140, 198052, 229090, 247565, 270010, 297817, 458180, 495130, 540020, 595634, 643669, 990260, 1191268, 1287338, 1489085, 1534903, 2574676, 2978170, 3069806, 3218345, 5956340, 6139612, 6436690, 7674515, 12873380, 15349030, 19953739, 30698060, 39907478, 79814956, 99768695, 199537390, 399074780]

約数ペア:

[(1, 399074780), (2, 199537390), (4, 99768695), (5, 79814956), (10, 39907478), (13, 30698060), (20, 19953739), (26, 15349030), (31, 12873380), (52, 7674515), (62, 6436690), (65, 6139612), (67, 5956340), (124, 3218345), (130, 3069806), (134, 2978170), (155, 2574676), (260, 1534903), (268, 1489085), (310, 1287338), (335, 1191268), (403, 990260), (620, 643669), (670, 595634), (739, 540020), (806, 495130), (871, 458180), (1340, 297817), (1478, 270010), (1612, 247565), (1742, 229090), (2015, 198052), (2077, 192140), (2956, 135005), (3484, 114545), (3695, 108004), (4030, 99026), (4154, 96070), (4355, 91636), (7390, 54002), (8060, 49513), (8308, 48035), (8710, 45818), (9607, 41540), (10385, 38428), (14780, 27001), (17420, 22909), (19214, 20770)]