187239640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{668713}}^1$

素因数の和:668731

約数の個数: 32

約数和(自身を含む): 481474080

約数和(自身を除く): 294234440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 668713, 1337426, 2674852, 3343565, 4680991, 5349704, 6687130, 9361982, 13374260, 18723964, 23404955, 26748520, 37447928, 46809910, 93619820, 187239640]

約数ペア:

[(1, 187239640), (2, 93619820), (4, 46809910), (5, 37447928), (7, 26748520), (8, 23404955), (10, 18723964), (14, 13374260), (20, 9361982), (28, 6687130), (35, 5349704), (40, 4680991), (56, 3343565), (70, 2674852), (140, 1337426), (280, 668713)]