3967280

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{491}}^1$

素因数の和:605

約数の個数: 40

約数和(自身を含む): 9334224

約数和(自身を除く): 5366944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 491, 505, 808, 982, 1010, 1616, 1964, 2020, 2455, 3928, 4040, 4910, 7856, 8080, 9820, 19640, 39280, 49591, 99182, 198364, 247955, 396728, 495910, 793456, 991820, 1983640, 3967280]

約数ペア:

[(1, 3967280), (2, 1983640), (4, 991820), (5, 793456), (8, 495910), (10, 396728), (16, 247955), (20, 198364), (40, 99182), (80, 49591), (101, 39280), (202, 19640), (404, 9820), (491, 8080), (505, 7856), (808, 4910), (982, 4040), (1010, 3928), (1616, 2455), (1964, 2020)]