20348620040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10381949}}^1$

素因数の和:10381974

約数の個数: 48

約数和(自身を含む): 53259403500

約数和(自身を除く): 32910783460

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 10381949, 20763898, 41527796, 51909745, 72673643, 83055592, 103819490, 145347286, 207638980, 290694572, 363368215, 415277960, 508715501, 581389144, 726736430, 1017431002, 1453472860, 2034862004, 2543577505, 2906945720, 4069724008, 5087155010, 10174310020, 20348620040]

約数ペア:

[(1, 20348620040), (2, 10174310020), (4, 5087155010), (5, 4069724008), (7, 2906945720), (8, 2543577505), (10, 2034862004), (14, 1453472860), (20, 1017431002), (28, 726736430), (35, 581389144), (40, 508715501), (49, 415277960), (56, 363368215), (70, 290694572), (98, 207638980), (140, 145347286), (196, 103819490), (245, 83055592), (280, 72673643), (392, 51909745), (490, 41527796), (980, 20763898), (1960, 10381949)]