664978055

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{32257}}^1$

素因数の和:32319

約数の個数: 32

約数和(自身を含む): 990965760

約数和(自身を除く): 325987705

約数列:

[1, 5, 7, 19, 31, 35, 95, 133, 155, 217, 589, 665, 1085, 2945, 4123, 20615, 32257, 161285, 225799, 612883, 999967, 1128995, 3064415, 4290181, 4999835, 6999769, 18999373, 21450905, 34998845, 94996865, 132995611, 664978055]

約数ペア:

[(1, 664978055), (5, 132995611), (7, 94996865), (19, 34998845), (31, 21450905), (35, 18999373), (95, 6999769), (133, 4999835), (155, 4290181), (217, 3064415), (589, 1128995), (665, 999967), (1085, 612883), (2945, 225799), (4123, 161285), (20615, 32257)]