18210002468

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{65899}}^1$

素因数の和:66120

約数の個数: 48

約数和(自身を含む): 37199232000

約数和(自身を除く): 18989229532

約数列:

[1, 2, 4, 7, 14, 28, 71, 139, 142, 278, 284, 497, 556, 973, 994, 1946, 1988, 3892, 9869, 19738, 39476, 65899, 69083, 131798, 138166, 263596, 276332, 461293, 922586, 1845172, 4678829, 9159961, 9357658, 18319922, 18715316, 32751803, 36639844, 64119727, 65503606, 128239454, 131007212, 256478908, 650357231, 1300714462, 2601428924, 4552500617, 9105001234, 18210002468]

約数ペア:

[(1, 18210002468), (2, 9105001234), (4, 4552500617), (7, 2601428924), (14, 1300714462), (28, 650357231), (71, 256478908), (139, 131007212), (142, 128239454), (278, 65503606), (284, 64119727), (497, 36639844), (556, 32751803), (973, 18715316), (994, 18319922), (1946, 9357658), (1988, 9159961), (3892, 4678829), (9869, 1845172), (19738, 922586), (39476, 461293), (65899, 276332), (69083, 263596), (131798, 138166)]