645178479

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{607}}^1\times {\mathrm{1039}}^1$

素因数の和:1691

約数の個数: 32

約数和(自身を含む): 971243520

約数和(自身を除く): 326065041

約数列:

[1, 3, 11, 31, 33, 93, 341, 607, 1023, 1039, 1821, 3117, 6677, 11429, 18817, 20031, 32209, 34287, 56451, 96627, 206987, 354299, 620961, 630673, 1062897, 1892019, 6937403, 19550863, 20812209, 58652589, 215059493, 645178479]

約数ペア:

[(1, 645178479), (3, 215059493), (11, 58652589), (31, 20812209), (33, 19550863), (93, 6937403), (341, 1892019), (607, 1062897), (1023, 630673), (1039, 620961), (1821, 354299), (3117, 206987), (6677, 96627), (11429, 56451), (18817, 34287), (20031, 32209)]