644745608

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1609}}^1\times {\mathrm{3853}}^1$

素因数の和:5481

約数の個数: 32

約数和(自身を含む): 1303037400

約数和(自身を除く): 658291792

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1609, 3218, 3853, 6436, 7706, 12872, 15412, 20917, 30824, 41834, 50089, 83668, 100178, 167336, 200356, 400712, 6199477, 12398954, 24797908, 49595816, 80593201, 161186402, 322372804, 644745608]

約数ペア:

[(1, 644745608), (2, 322372804), (4, 161186402), (8, 80593201), (13, 49595816), (26, 24797908), (52, 12398954), (104, 6199477), (1609, 400712), (3218, 200356), (3853, 167336), (6436, 100178), (7706, 83668), (12872, 50089), (15412, 41834), (20917, 30824)]