640604835

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{365017}}^1$

素因数の和:365044

約数の個数: 32

約数和(自身を含む): 1226460480

約数和(自身を除く): 585855645

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 365017, 1095051, 1825085, 3285153, 4745221, 5475255, 9855459, 14235663, 16425765, 23726105, 42706989, 49277295, 71178315, 128120967, 213534945, 640604835]

約数ペア:

[(1, 640604835), (3, 213534945), (5, 128120967), (9, 71178315), (13, 49277295), (15, 42706989), (27, 23726105), (39, 16425765), (45, 14235663), (65, 9855459), (117, 5475255), (135, 4745221), (195, 3285153), (351, 1825085), (585, 1095051), (1755, 365017)]