18492740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4261}}^1$

素因数の和:4308

約数の個数: 48

約数和(自身を含む): 45825024

約数和(自身を除く): 27332284

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, 4261, 4340, 8522, 17044, 21305, 29827, 42610, 59654, 85220, 119308, 132091, 149135, 264182, 298270, 528364, 596540, 660455, 924637, 1320910, 1849274, 2641820, 3698548, 4623185, 9246370, 18492740]

約数ペア:

[(1, 18492740), (2, 9246370), (4, 4623185), (5, 3698548), (7, 2641820), (10, 1849274), (14, 1320910), (20, 924637), (28, 660455), (31, 596540), (35, 528364), (62, 298270), (70, 264182), (124, 149135), (140, 132091), (155, 119308), (217, 85220), (310, 59654), (434, 42610), (620, 29827), (868, 21305), (1085, 17044), (2170, 8522), (4261, 4340)]