137791640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{492113}}^1$

素因数の和:492131

約数の個数: 32

約数和(自身を含む): 354322080

約数和(自身を除く): 216530440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 492113, 984226, 1968452, 2460565, 3444791, 3936904, 4921130, 6889582, 9842260, 13779164, 17223955, 19684520, 27558328, 34447910, 68895820, 137791640]

約数ペア:

[(1, 137791640), (2, 68895820), (4, 34447910), (5, 27558328), (7, 19684520), (8, 17223955), (10, 13779164), (14, 9842260), (20, 6889582), (28, 4921130), (35, 3936904), (40, 3444791), (56, 2460565), (70, 1968452), (140, 984226), (280, 492113)]