18544820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4273}}^1$

素因数の和:4320

約数の個数: 48

約数和(自身を含む): 45954048

約数和(自身を除く): 27409228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4273, 4340, 8546, 17092, 21365, 29911, 42730, 59822, 85460, 119644, 132463, 149555, 264926, 299110, 529852, 598220, 662315, 927241, 1324630, 1854482, 2649260, 3708964, 4636205, 9272410, 18544820]

約数ペア:

[(1, 18544820), (2, 9272410), (4, 4636205), (5, 3708964), (7, 2649260), (10, 1854482), (14, 1324630), (20, 927241), (28, 662315), (31, 598220), (35, 529852), (62, 299110), (70, 264926), (124, 149555), (140, 132463), (155, 119644), (217, 85460), (310, 59822), (434, 42730), (620, 29911), (868, 21365), (1085, 17092), (2170, 8546), (4273, 4340)]