1983640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{491}}^1$

素因数の和:603

約数の個数: 32

約数和(自身を含む): 4516560

約数和(自身を除く): 2532920

約数列:

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

約数ペア:

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