489814780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{38447}}^1$

素因数の和:38483

約数の個数: 72

約数和(自身を含む): 1288623168

約数和(自身を除く): 798808388

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 12740, 38447, 76894, 153788, 192235, 269129, 384470, 499811, 538258, 768940, 999622, 1076516, 1345645, 1883903, 1999244, 2499055, 2691290, 3498677, 3767806, 4998110, 5382580, 6997354, 7535612, 9419515, 9996220, 13994708, 17493385, 18839030, 24490739, 34986770, 37678060, 48981478, 69973540, 97962956, 122453695, 244907390, 489814780]

約数ペア:

[(1, 489814780), (2, 244907390), (4, 122453695), (5, 97962956), (7, 69973540), (10, 48981478), (13, 37678060), (14, 34986770), (20, 24490739), (26, 18839030), (28, 17493385), (35, 13994708), (49, 9996220), (52, 9419515), (65, 7535612), (70, 6997354), (91, 5382580), (98, 4998110), (130, 3767806), (140, 3498677), (182, 2691290), (196, 2499055), (245, 1999244), (260, 1883903), (364, 1345645), (455, 1076516), (490, 999622), (637, 768940), (910, 538258), (980, 499811), (1274, 384470), (1820, 269129), (2548, 192235), (3185, 153788), (6370, 76894), (12740, 38447)]