81369970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{38933}}^1$

素因数の和:38970

約数の個数: 32

約数和(自身を含む): 168194880

約数和(自身を除く): 86824910

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 38933, 77866, 194665, 389330, 428263, 739727, 856526, 1479454, 2141315, 3698635, 4282630, 7397270, 8136997, 16273994, 40684985, 81369970]

約数ペア:

[(1, 81369970), (2, 40684985), (5, 16273994), (10, 8136997), (11, 7397270), (19, 4282630), (22, 3698635), (38, 2141315), (55, 1479454), (95, 856526), (110, 739727), (190, 428263), (209, 389330), (418, 194665), (1045, 77866), (2090, 38933)]