51697940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{743}}^1$

素因数の和:837

約数の個数: 72

約数和(自身を含む): 128241792

約数和(自身を除く): 76543852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 245, 284, 355, 490, 497, 710, 743, 980, 994, 1420, 1486, 1988, 2485, 2972, 3479, 3715, 4970, 5201, 6958, 7430, 9940, 10402, 13916, 14860, 17395, 20804, 26005, 34790, 36407, 52010, 52753, 69580, 72814, 104020, 105506, 145628, 182035, 211012, 263765, 364070, 369271, 527530, 728140, 738542, 1055060, 1477084, 1846355, 2584897, 3692710, 5169794, 7385420, 10339588, 12924485, 25848970, 51697940]

約数ペア:

[(1, 51697940), (2, 25848970), (4, 12924485), (5, 10339588), (7, 7385420), (10, 5169794), (14, 3692710), (20, 2584897), (28, 1846355), (35, 1477084), (49, 1055060), (70, 738542), (71, 728140), (98, 527530), (140, 369271), (142, 364070), (196, 263765), (245, 211012), (284, 182035), (355, 145628), (490, 105506), (497, 104020), (710, 72814), (743, 69580), (980, 52753), (994, 52010), (1420, 36407), (1486, 34790), (1988, 26005), (2485, 20804), (2972, 17395), (3479, 14860), (3715, 13916), (4970, 10402), (5201, 9940), (6958, 7430)]